| House Name | Dist.# | County | Party | Session # | Dates | Notes |
|---|
|
|
| Maack, Herbert R. | 4 | Montgomery | Rep | 149-50 | 1965-66 |
| Maack, Herbert R. | 1 | Montgomery | Rep | 151-52 | 1967-68 |
| MacAree, James J. | 5 | Philadelphia | Rep | 116 | 1905-06 |
| MacDonald, Albert P. | | Blair | Rep | 108 | 1889-90 |
| MacDonald, Albert P. | | Blair | Rep | 109 | 1891-92 |
| Machan, Robert | | Washington | Rep | 33 | 1808-09 |
| Machmer, Laurence C. | 4 | Berks | Dem | 143-4 | 1959-60 |
| MacIver, Joseph | 1 | Philadelphia | Rep | 113 | 1899-00 |
| MacIver, Joseph | 1 | Philadelphia | Rep | 114 | 1901-02 |
| MacIver, Joseph | 1 | Philadelphia | Rep | 115 | 1903-04 |
| Mack, John N. | 2 | Northumberland | Dem | 125 | 1923-24 |
| Mackereth, Beverly | 196 | York | Rep | 185-86 | 2001-02 |
| Mackereth, Beverly | 196 | York | Rep | 187-88 | 2003-04 |
| Mackey, James | | Lancaster | AM | 56 | 1831-32 |
| Mackey, James | | Lancaster | AM | 57 | 1832-33 |
| Mackey, James | | Cumberland | Whig | 71 | 1847 |
| Mackey, Nathan C. | 3 | Lackawanna | Rep | 108 | 1889-90 |
| Mackey, Nathan C. | 3 | Lackawanna | Rep | 112 | 1897-98 |
| Mackey, Nathan C. | 3 | Lackawanna | Rep | 113 | 1899-00 |
| Mackin, Hugh E. | 6 | Philadelphia | Dem | 101 | 1877 |
| Mackin, Hugh E. | 6 | Philadelphia | Dem | 102 | 1878 |
| Mackin, Hugh E. | 6 | Philadelphia | Dem | 104 | 1881-82 |
| Mackin, Hugh E. | 6 | Philadelphia | Dem | 105 | 1883-84 |
| Mackin, Hugh E. | 6 | Philadelphia | Dem | 106 | 1885-86 |
| Mackin, Hugh E. | 6 | Philadelphia | Dem | 107 | 1887-88 |
| MacKinney, Miss Gertrude | | Butler | Rep | 125 | 1923-24 |
| Mackowski, William D. | 67 | McKean | Rep | 161-62 | 1977-78 |
| Mackowski, William D. | 67 | McKean | Rep | 163-64 | 1979-80 |
| Mackowski, William D. | 67 | McKean | Rep | 165-66 | 1981-82 |
| Mackowski, William D. | 67 | McKean | Rep | 167-68 | 1983-84 |
| Mackowski, William D. | 67 | McKean | Rep | 169-70 | 1985-86 |
| Mackrell, Archibald | 3 | Allegheny | Rep | 110 | 1893-94 |
| Mackrell, Archibald | 3 | Allegheny | Rep | 111 | 1895-96 |
| Maclay, David | | Franklin | Rep | 37 | 1812-13 |
| Maclay, David | | Franklin | Rep | 38 | 1813-14 |
| Maclay, David | | Franklin | Rep | 40 | 1815-16 |
| Maclay, David | | Franklin | Whig | 75 | 1851 |
| Maclay, David | | Franklin | Whig | 76 | 1852 |
| Maclay, David | | Franklin | Rep | 115 | 1903-04 |
| Maclay, Holmes | | Mifflin | Rep | 87 | 1863 |
| Maclay, John | | Franklin | Rep | 18 | 1793-94 |
| Maclay, John | | Cumberland | Rep | 38 | 1813-14 |
| Maclay, John | | Cumberland | Rep | 41 | 1816-17 |
| Maclay, John | | Cumberland | Dem | 46 | 1821-22 |
| Maclay, Joseph H. | | Mifflin | Rep | 103 | 1879-80 |
| Maclay, Joseph H. | | Mifflin | Rep | 104 | 1881-82 |
| Maclay, Robert P. | | Union | AM | 58 | 1833-34 |
| Maclay, Samuel | | Northumberland | Rep | 15 | 1790-91 |
| Maclay, Samuel | | Northumberland | Rep | 16 | 1791-92 |
| Maclay, Samuel | | Northumberland | Rep | 22 | 1797-98 |
| Maclay, William | | Dauphin | Rep | 20 | 1795-96 |
| Maclay, William | | Dauphin | Rep | 21 | 1796-97 |
| Maclay, William | | Dauphin | Rep | 22 | 1797-98 |
| Maclay, William | | Dauphin | Rep | 28 | 1803-04 |
| Maclay, William | | Franklin | Rep | 32 | 1807-08 |
| Maclay, William | | Franklin | Rep | 33 | 1808-09 |
| Maclay, William | | Franklin | Dem | 48 | 1823-24 |
| Maclean, Moses | | Dauphin | Fed | 50 | 1825-26 |
| Macmanus, James | | Centre | Dem | 66 | 1842 |
| Macmanus, James | | Centre, Clearfield | Dem | 68 | 1844 |
| MacMillan, Joseph G. | | Clarion | Rep | 126 | 1925-26 |
| Macomber, Wilson Z. | | York | Dem | 113 | 1899-00 |
| Macreynolds, Thomas | | Bucks | Dem | 104 | 1881-82 |
| Macreynolds, Thomas | | Bucks | Dem | 105 | 1883-84 |
| Madden, James | | Union | Dem | 50 | 1825-26 |
| Madden, James | | Union | Dem | 51 | 1826-27 |
| Madden, John R. | 1 | Westmoreland | Rep | 136 | 1945-46 |
| Madden, John R. | 1 | Westmoreland | Rep | 137 | 1947-48 |
| Madden, John R. | 1 | Westmoreland | Rep | 139 | 1951-52 |
| Maddock, Thomas H. | | Delaware | Whig | 79 | 1855 |
| Madeira, George A. | | Franklin | Whig | 76 | 1852 |
| Madigan, Albert E. | | Bradford | Rep | 135 | 1943-44 |
| Madigan, Albert E. | | Bradford | Rep | 136 | 1945-46 |
| Madigan, Albert E. | | Bradford | Rep | 137 | 1947-48 |
| Madigan, Albert E. | | Bradford | Rep | 138 | 1949-50 |
| Madigan, Albert E. | | Bradford | Rep | 139 | 1951-52 |
| Madigan, Roger A. | 110 | Bradford | Rep | 161-62 | 1977-78 |
| Madigan, Roger A. | 110 | Bradford | Rep | 163-64 | 1979-80 |
| Madigan, Roger A. | 110 | Bradford | Rep | 165-66 | 1981-82 |
| Madigan, Roger A. | 110 | Bradford | Rep | 167-68 | 1983-84 |
| Madill, H. J. | | Bradford | Rep | 103 | 1879-80 |
| Magee, Christopher | | Allegheny | Dem | 80 | 1856 |
| Magee, Frank J. | | York | Dem | 95 | 1871 |
| Magee, Frank J. | | York | Dem | 96 | 1872 |
| Magee, George C., Jr. | | Crawford | Rep | 141 | 1955-56 |
| Magee, George C., Jr. | | Crawford | Rep | 142 | 1957-58 |
| Magee, George C., Jr. | | Crawford | Rep | 143-4 | 1959-60 |
| Magee, George C., Jr. | | Crawford | Rep | 145-6 | 1961-62 |
| Magee, George C., Jr. | | Crawford | Rep | 147-8 | 1963-64 |
| Magee, George W. | | Venango | Rep | 115 | 1903-04 |
| Magee, George W. | | Venango | Rep | 116 | 1905-06 |
| Magee, H. C. | 3 | Luzerne & Lackawanna | Rep | 106 | 1885-86 |
| Magee, John A. | | Cumberland, Perry | Dem | 87 | 1863 |
| Magee, Thomas | | Armstrong, Clarion, Jefferson | Dem | 77 | 1853 |
| Magee, Thomas | | Armstrong, Clarion, Jefferson | Dem | 78 | 1854 |
| Magee, William Addison | 5 | Allegheny | Rep | 118 | 1909-10 |
| Magee, William Addison | 3 | Allegheny | Rep | 119 | 1911-12 |
| Magehan, Michael D. | | Cambria | Whig | 69 | 1845 |
| Magehan, Michael D. | | Cambria | Whig | 70 | 1846 |
| Magill, Frank S. | | Franklin | Rep | 123 | 1919-20 |
| Magill, Frank S. | | Franklin | Rep | 124 | 1921-22 |
| Magill, W. P. | | Bucks | Whig | 79 | 1855 |
| Magill, William | | Mifflin | Rep | 35 | 1810-11 |
| Magill, William | | Mifflin | Rep | 36 | 1811-12 |
| Magill, William | | Mifflin | Rep | 37 | 1812-13 |
| Magill, William | | Mifflin | Dem | 45 | 1820-21 |
| Magill, William | | Mifflin | Fed | 46 | 1821-22 |
| Magill, William H. | 5 | Allegheny | Rep | 101 | 1877 |
| Magill, William H. | 5 | Allegheny | Rep | 102 | 1878 |
| Magill, William H. | 5 | Allegheny | Rep | 103 | 1879-80 |
| Magnin, Albert | | Delaware | Rep | 108 | 1889-90 |
| Magnin, Albert | | Delaware | Rep | 109 | 1891-92 |
| Magoffin, Joseph | | Philadelphia | Fed | 18 | 1793-94 |
| Magoffin, Joseph | | Philadelphia | Fed | 19 | 1794-95 |
| Maguire, Charles | 2 | Philadelphia | Dem | 140 | 1953-54 |
| Maguire, James | | Blair, Huntingdon | Whig | 78 | 1854 |
| Mahaffey, Lindsey | | Clinton, Lycoming | Rep | 83 | 1859 |
| Mahan, Samuel | | Butler | Rep | 140 | 1953-54 |
| Mahan, Samuel | | Butler | Rep | 141 | 1955-56 |
| Mahan, Samuel | | Butler | Rep | 142 | 1957-58 |
| Mahan, Samuel | | Butler | Rep | 143-4 | 1959-60 |
| Mahany, James A. | | Philadelphia | Dem | 48 | 1823-24 |
| Mahany, James A. | | Philadelphia | Dem | 49 | 1824-25 |
| Mahany, Rowland B. | | Crawford | Rep | 135 | 1943-44 |
| Mahany, Rowland B. | | Crawford | Rep | 136 | 1945-46 |
| Maher, John A., III | 40 | Allegheny | Rep | 181-82 | 1997-98 |
| Maher, John A., III | 40 | Allegheny | Rep | 183-84 | 1999-00 |
| Maher, John A., III | 40 | Allegheny | Rep | 185-86 | 2001-02 |
| Maher, John A., III | 40 | Allegheny | Rep | 187-88 | 2003-04 |
| Mahon, Thad. M. | | Franklin | Rep | 96 | 1872 |
| Mahon, Thad. M. | | Franklin | Rep | 97 | 1873 |
| Mahon, William T. | 3 | Luzerne | Rep | 114 | 1901-02 |
| Maiale, Nicholas J. | 183 | Philadelphia | Dem | 163-64 | 1979-80 |
| Maiale, Nicholas J. | 183 | Philadelphia | Dem | 165-66 | 1981-82 |
| Maiale, Nicholas J. | 183 | Philadelphia | Dem | 167-68 | 1983-84 |
| Maiale, Nicholas J. | 183 | Philadelphia | Dem | 169-70 | 1985-86 |
| Maiale, Nicholas J. | 183 | Philadelphia | Dem | 171-72 | 1987-88 |
| Maiale, Nicholas J. | 183 | Philadelphia | Dem | 173-74 | 1989-90 |
| Maiale, Nicholas J. | 183 | Philadelphia | Dem | 175-76 | 1991-92 |
| Maine, Connie G. | 6 | Crawford | Dem | 171-72 | 1987-88 |
| Maine, Connie G. | 6 | Crawford | Dem | 173-74 | 1989-90 |
| Maish, Levi | | York | Dem | 91 | 1867 |
| Maish, Levi | | York | Dem | 92 | 1868 |
| Maitland, Stephen R. | 91 | Adams | Rep | 177-78 | 1993-94 |
| Maitland, Stephen R. | 91 | Adams | Rep | 179-80 | 1995-96 |
| Maitland, Stephen R. | 91 | Adams | Rep | 181-82 | 1997-98 |
| Maitland, Stephen R. | 91 | Adams | Rep | 183-84 | 1999-00 |
| Maitland, Stephen R. | 91 | Adams | Rep | 185-86 | 2001-02 |
| Maitland, Stephen R. | 91 | Adams | Rep | 187-88 | 2003-04 |
| Major, Sandra J. | 111 | Susquehanna | Rep | 179-80 | 1995-96 |
| Major, Sandra J. | 111 | Susquehanna | Rep | 181-82 | 1997-98 |
| Major, Sandra J. | 111 | Susquehanna | Rep | 183-84 | 1999-00 |
| Major, Sandra J. | 111 | Susquehanna | Rep | 185-86 | 2001-02 |
| Major, Sandra J. | 111 | Susquehanna | Rep | 187-88 | 2003-04 |
| Malady, Regis R. | 39 | Allegheny | Dem | 153-54 | 1969-70 |
| Malady, Regis R. | 39 | Allegheny | Dem | 155-56 | 1971-72 |
| Malady, Regis R. | 39 | Allegheny | Dem | 157-58 | 1973-74 |
| Male, Henry A. | 2 | Northampton | Dem | 129 | 1931-32 |
| Male, Henry A. | 2 | Northampton | Dem | 130 | 1933-34 |
| Male, Henry A. | 2 | Northampton | Dem | 131 | 1935-36 |
| Malie, Daniel A. | 1 | Allegheny | Rep | 118 | 1909-10 |
| Malie, Daniel A. | 7 | Allegheny | Rep | 119 | 1911-12 |
| Malie, Daniel A. | 7 | Allegheny | Rep | 120 | 1913-14 |
| Malie, Daniel A. | 7 | Allegheny | Rep | 122 | 1917-18 |
| Malie, Daniel A. | 7 | Allegheny | Rep | 125 | 1923-24 |
| Malie, Daniel A. | 7 | Allegheny | Rep | 126 | 1925-26 |
| Malina, John E. | 19 | Philadelphia | Dem | 130 | 1933-34 |
| Malinzak, Frank L. | 2 | Fayette | Dem | 149-50 | 1965-66 |
| Mallen, George J. | 4 | Philadelphia | Rep | 131 | 1935-36 |
| Mallen, George J. | 4 | Philadelphia | Rep | 132 | 1937-38 |
| Mallery, Frank V. | | Venango | Rep | 123 | 1919-20 |
| Mallery, Garrick | | Luzerne, Susquehanna | Fed | 51 | 1826-27 |
| Mallery, Garrick | | Luzerne, Susquehanna | Fed | 52 | 1827-28 |
| Mallery, Garrick | | Luzerne, Susquehanna | Jack | 53 | 1828-29 |
| Mallery, Garrick | | Luzerne | Dem | 54 | 1829-30 |
| Mallinee, John K. | | Crawford | Rep | 109 | 1891-92 |
| Malloy, James J. | 7 | Luzerne | Dem | 133 | 1939-40 |
| Malloy, James J. | 7 | Luzerne | Dem | 134 | 1941-42 |
| Malone, Thomas D. | 4 | Allegheny | Rep | 118 | 1909-10 |
| Malone, Thomas D. | 6 | Allegheny | Dem | 133 | 1939-40 |
| Maloney, George | | Venango | Dem | 113 | 1899-00 |
| Maloney, George | | Venango | Dem | 114 | 1901-02 |
| Maloney, Patrick J. | 2 | Allegheny | Rep | 129 | 1931-32 |
| Maloney, Patrick J. | 2 | Allegheny | Rep | 130 | 1933-34 |
| Maloney, Thomas J. | 135 | Northampton | Rep | 157-58 | 1973-74 |
| Maloy, J. W. | | Carbon | Dem | 106 | 1885-86 |
| Manbeck, Clarence F. | | Lebanon | Rep | 145-6 | 1961-62 |
| Manbeck, Clarence F. | | Lebanon | Rep | 147-8 | 1963-64 |
| Manbeck, Clarence F. | | Lebanon | Rep | 149-50 | 1965-66 |
| Manbeck, Joseph H. | 2 | Schuylkill | Rep | 147-8 | 1963-64 |
| Manbeck, Joseph H. | 3 | Schuylkill | Rep | 151-52 | 1967-68 |
| Manbeck, Joseph H. | 125 | Schuylkill | Rep | 153-54 | 1969-70 |
| Manbeck, Joseph H. | 125 | Schuylkill | Rep | 155-56 | 1971-72 |
| Manderfield, Thomas | | Philadelphia | Dem | 78 | 1854 |
| Manderino, James J. | 5 | Westmoreland | Dem | 151-52 | 1967-68 |
| Manderino, James J. | 58 | Westmoreland | Dem | 153-54 | 1969-70 |
| Manderino, James J. | 58 | Westmoreland | Dem | 155-56 | 1971-72 |
| Manderino, James J. | 58 | Westmoreland | Dem | 157-58 | 1973-74 |
| Manderino, James J. | 58 | Westmoreland | Dem | 159-60 | 1975-76 |
| Manderino, James J. | 58 | Westmoreland | Dem | 161-62 | 1977-78 |
| Manderino, James J. | 58 | Westmoreland | Dem | 163-64 | 1979-80 |
| Manderino, James J. | 58 | Westmoreland | Dem | 165-66 | 1981-82 |
| Manderino, James J. | 58 | Westmoreland | Dem | 167-68 | 1983-84 |
| Manderino, James J. | 58 | Westmoreland | Dem | 169-70 | 1985-86 |
| Manderino, James J. | 58 | Westmoreland | Dem | 171-72 | 1987-88 |
| Manderino, James J. | 58 | Westmoreland | Dem | 173-74 | 1989-90 |
| Manderino, Kathy M. | 194 | Philadelphia | Dem | 177-78 | 1993-94 |
| Manderino, Kathy M. | 194 | Bradford | Dem | 179-80 | 1995-96 |
| Manderino, Kathy M. | 194 | Bradford | Dem | 181-82 | 1997-98 |
| Manderino, Kathy M. | 194 | Bradford | Dem | 183-84 | 1999-00 |
| Manderino, Kathy M. | 194 | Bradford | Dem | 185-86 | 2001-02 |
| Manderino, Kathy M. | 194 | Bradford | Dem | 187-88 | 2003-04 |
| Manear, Samuel | | York | Dem | 80 | 1856 |
| Manear, Samuel | | York | Dem | 81 | 1857 |
| Maneely, W. J. | 19 | Philadelphia | Rep | 103 | 1879-80 |
| Mangan, William J. | 6 | Allegheny | Rep | 121 | 1915-16 |
| Mangan, William J. | 6 | Allegheny | Rep | 122 | 1917-18 |
| Mangan, William J. | 6 | Allegheny | Rep | 123 | 1919-20 |
| Mangan, William J. | 6 | Allegheny | Rep | 124 | 1921-22 |
| Mangan, William J. | 6 | Allegheny | Rep | 125 | 1923-24 |
| Mangan, William J. | 6 | Allegheny | Rep | 126 | 1925-26 |
| Manifold, John | | York | Dem | 84 | 1860 |
| Manifold, John | | York | Dem | 85 | 1861 |
| Manley, Charles D. | | Delaware | Dem | 80 | 1856 |
| Manley, G. B. | | Lycoming, Union, Snyder | Union | 89 | 1865 |
| Manley, Lawrence T. | | Bradford | Rep | 112 | 1897-98 |
| Manley, Lawrence T. | | Bradford | Rep | 113 | 1899-00 |
| Manmiller, Joseph C. | 105 | Dauphin | Rep | 159-60 | 1975-76 |
| Manmiller, Joseph C. | 105 | Dauphin | Rep | 161-62 | 1977-78 |
| Manmiller, Joseph C. | 105 | Dauphin | Rep | 163-64 | 1979-80 |
| Manmiller, Joseph C. | 105 | Dauphin | Rep | 165-66 | 1981-82 |
| Manmiller, Joseph C. | 105 | Dauphin | Rep | 167-68 | 1983-84 |
| Manmiller, Joseph C. | 105 | Dauphin | Rep | 169-70 | 1985-86 |
| Manmiller, Joseph C. | 105 | Dauphin | Rep | 171-72 | 1987-88 |
| Manmiller, Joseph C. | 105 | Dauphin | Rep | 173-74 | 1989-90 |
| Mann, Andrew | | Bedford | Dem | 48 | 1823-24 |
| Mann, Andrew | | Bedford | Dem | 49 | 1824-25 |
| Mann, Andrew | | Bedford | Dem | 50 | 1825-26 |
| Mann, Jennifer L. | 132 | Lehigh | Rep | 183-84 | 1999-00 |
| Mann, Jennifer L. | 132 | Lehigh | Rep | 185-86 | 2001-02 |
| Mann, Jennifer L. | 132 | Lehigh | Rep | 187-88 | 2003-04 |
| Mann, Joel K. | | Montgomery | Rep | 42 | 1817-18 |
| Mann, Joel K. | | Montgomery | Dem | 43 | 1818-19 |
| Mann, Joel K. | | Montgomery | Dem | 44 | 1819-20 |
| Mann, Joel K. | | Montgomery | Dem | 45 | 1820-21 |
| Mann, John | | Montgomery | Rep | 28 | 1803-04 |
| Mann, John | | Montgomery | Rep | 29 | 1804-05 |
| Mann, John S. | | Tioga, Potter | Union | 90 | 1866 |
| Mann, John S. | | Tioga, Potter | Rep | 91 | 1867 |
| Mann, John S. | | Tioga, Potter | Rep | 92 | 1868 |
| Mann, John S. | | Tioga, Potter | Rep | 95 | 1871 |
| Mann, Lewis | | Tioga, Potter | Rep | 83 | 1859 |
| Mann, Lewis | | Tioga, Potter | Rep | 84 | 1860 |
| Manning, Edgar S. | | Cumberland | Dem | 113 | 1899-00 |
| Manning, Edgar S. | | Cumberland | Dem | 114 | 1901-02 |
| Manning, Harry (Henry) | | Cumberland | Dem | 112 | 1897-98 |
| Manning, Harry (Henry) | | Cumberland | Dem | 113 | 1899-00 |
| Mannion, John F. | 5 | Lackawanna | Dem | 119 | 1911-12 |
| Mannion, John F. | 5 | Lackawanna | Dem | 120 | 1913-14 |
| Mansfield, Ira F. | | Beaver | Rep | 104 | 1881-82 |
| Mansfield, Ira F. | | Beaver | Rep | 110 | 1893-94 |
| Mansfield, Ira F. | | Beaver | Rep | 111 | 1895-96 |
| Mansfield, Ira F. | | Beaver | Rep | 112 | 1897-98 |
| Mansfield, Ira F. | | Beaver | Rep | 115 | 1903-04 |
| Mantz, Howard E. | 2 | Lehigh | Rep | 124 | 1921-22 |
| Mapes, George E. | | Venango | Rep | 101 | 1877 |
| Mapes, George E. | | Venango | Rep | 102 | 1878 |
| Mapes, George E. | | Venango | Rep | 103 | 1879-80 |
| Mapes, George E. | | Venango | Rep | 104 | 1881-82 |
| Maple, J. A. | | Greene | Dem | 111 | 1895-96 |
| Maple, J. A. | | Greene | Dem | 112 | 1897-98 |
| March, Franklin | | Chester | Rep | 115 | 1903-04 |
| March, Franklin | | Chester | Rep | 116 | 1905-06 |
| Marchand, George W. | | Armstrong | Dem | 66 | 1842 |
| Marcks, John J. | 2 | Lehigh | Dem | 129 | 1931-32 |
| Marcks, John J. | 2 | Lehigh | Dem | 130 | 1933-34 |
| Marcus, Joseph | 13 | Philadelphia | Rep | 125 | 1923-24 |
| Marcus, Joseph | 13 | Philadelphia | Rep | 124 | 1921-22 |
| Marcus, Joseph C. | 1 | Allegheny | Rep | 123 | 1919-20 |
| Marcus, Joseph C. | 1 | Allegheny | Rep | 124 | 1921-22 |
| Marcus, Joseph C. | 1 | Allegheny | Rep | 125 | 1923-24 |
| Marcus, Joseph C. | 1 | Allegheny | Rep | 126 | 1925-26 |
| Marcus, Joseph C. | 1 | Allegheny | Rep | 127 | 1927-28 |
| Marcus, Joseph C. | 1 | Allegheny | Rep | 128 | 1929-30 |
| Marino, Russell | 1 | Washington | Dem | 132 | 1937-38 |
| Marker, Noah | | Westmoreland | Dem | 103 | 1879-80 |
| Markle, John | | Westmoreland | Dem | 46 | 1821-22 |
| Markle, John | | Westmoreland | Dem | 47 | 1822-23 |
| Markle, John | | Westmoreland | Dem | 48 | 1823-24 |
| Markle, John | | Westmoreland | Dem | 49 | 1824-25 |
| Markley, A. D. | | Montgomery | Dem | 89 | 1865 |
| Markley, A. D. | | Montgomery | Dem | 90 | 1866 |
| Markley, A. D. | | Montgomery | Dem | 91 | 1867 |
| Markley, Benjamin | | Montgomery | Fed | 15 | 1790-91 |
| Markley, Marian E. | 2 | Lehigh | Rep | 139 | 1951-52 |
| Markley, Marian E. | 2 | Lehigh | Rep | 140 | 1953-54 |
| Markley, Marian E. | 2 | Lehigh | Rep | 141 | 1955-56 |
| Markley, Marian E. | 2 | Lehigh | Rep | 142 | 1957-58 |
| Markley, Marian E. | 2 | Lehigh | Rep | 143-4 | 1959-60 |
| Markley, Marian E. | 2 | Lehigh | Rep | 145-6 | 1961-62 |
| Markley, Marian E. | 2 | Lehigh | Rep | 147-8 | 1963-64 |
| Markley, Marian E. | 2 | Lehigh | Rep | 149-50 | 1965-66 |
| Markley, Marian E. | 4 | Lehigh | Rep | 151-52 | 1967-68 |
| Markosek, Joseph F. | 25 | Westmoreland | Dem | 167-68 | 1983-84 |
| Markosek, Joseph F. | 25 | Westmoreland | Dem | 169-70 | 1985-86 |
| Markosek, Joseph F. | 25 | Westmoreland | Dem | 171-72 | 1987-88 |
| Markosek, Joseph F. | 25 | Westmoreland | Dem | 173-74 | 1989-90 |
| Markosek, Joseph F. | 25 | Allegheny | Dem | 175-76 | 1991-92 |
| Markosek, Joseph F. | 25 | Allegheny | Dem | 177-78 | 1993-94 |
| Markosek, Joseph F. | 25 | Allegheny | Dem | 179-80 | 1995-96 |
| Markosek, Joseph F. | 25 | Allegheny | Dem | 181-82 | 1997-98 |
| Markosek, Joseph F. | 25 | Allegheny | Dem | 183-84 | 1999-00 |
| Markosek, Joseph F. | 25 | Allegheny | Dem | 185-86 | 2001-02 |
| Markosek, Joseph F. | 25 | Allegheny | Dem | 187-88 | 2003-04 |
| Markovitz, Harry | 5 | Allegheny | Rep | 149-50 | 1965-66 |
| Marks, Fred | 1 | Berks | Dem | 134 | 1941-42 |
| Marks, James N. | 18 | Philadelphia | Union | 90 | 1866 |
| Marks, James N. | 18 | Philadelphia | Rep | 91 | 1867 |
| Marks, James N. | 18 | Philadelphia | Rep | 96 | 1872 |
| Marks, William, Jr. | | Allegheny, Butler | Rep | 34 | 1809-10 |
| Marks, William, Jr. | | Allegheny, Butler | Rep | 35 | 1810-11 |
| Marks, William, Jr. | | Allegheny, Butler | Rep | 36 | 1811-12 |
| Marks, William, Jr. | | Allegheny, Butler | Rep | 37 | 1812-13 |
| Marks, William, Jr. | | Allegheny, Butler | Rep | 38 | 1813-14 |
| Marks, William, Jr. | | Allegheny, Butler | Rep | 42 | 1817-18 |
| Marks, William, Jr. | | Allegheny, Butler | Dem | 43 | 1818-19 |
| Marland, Alfred | 5 | Allegheny | Rep | 108 | 1889-90 |
| Marlin, Ralph | | Erie, Crawford, Warren, Mercer, Venango | Fed | 40 | 1815-16 |
| Marlin, Ralph | | Erie, Crawford, Warren, Mercer, Venango | Fed | 41 | 1816-17 |
| Marlin, Ralph | | Erie, Crawford, Warren, Mercer, Venango | Fed | 42 | 1817-18 |
| Marmion, Frank J., Jr. | 40 | Allegheny | Rep | 165-66 | 1981-82 |
| Marmion, Frank J., Jr. | 40 | Allegheny | Rep | 167-68 | 1983-84 |
| Marr, Floyd N. | 1 | Beaver | Rep | 133 | 1939-40 |
| Marren, John R. | 1 | Westmoreland | Rep | 133 | 1939-40 |
| Marsh, Joseph | | Bradford | Union | 88 | 1864 |
| Marsh, Joseph H. | | Bradford, Sullivan | Union | 89 | 1865 |
| Marsh, Joseph H. | | Bradford | Rep | 104 | 1881-82 |
| Marsh, Ralph A. | 2 | Clearfield | Rep | 142 | 1957-58 |
| Marsh, Ralph A. | 2 | Clearfield | Rep | 145-6 | 1961-62 |
| Marsh, Ralph A. | 2 | Clearfield | Rep | 147-8 | 1963-64 |
| Marshal, John | | Washington | Rep | 27 | 1802-03 |
| Marshal, John | | Washington | Rep | 28 | 1803-04 |
| Marshal, John | | Washington | Rep | 29 | 1804-05 |
| Marshal, John | | Washington | Convent | 30 | 1805-06 |
| Marshall, Andrew | | Adams | AM | 55 | 1830-31 |
| Marshall, Andrew | | Adams | AM | 56 | 1831-32 |
| Marshall, David M. | | Indiana, Westmoreland | Rep | 93 | 1869 |
| Marshall, David M. | | Indiana, Westmoreland | Rep | 94 | 1870 |
| Marshall, H. Clay | | Huntingdon | Rep | 104 | 1881-82 |
| Marshall, James H. | | Adams | Dem | 88 | 1864 |
| Marshall, James H. | | Adams | Dem | 89 | 1865 |
| Marshall, James L. | 3 | Philadelphia | Dem | 99 | 1875 |
| Marshall, James L. | 3 | Philadelphia | Dem | 100 | 1876 |
| Marshall, James L. | 3 | Philadelphia | Dem | 101 | 1877 |
| Marshall, James L. | 3 | Philadelphia | Dem | 102 | 1878 |
| Marshall, James S. | | Westmoreland | Dem | 104 | 1881-82 |
| Marshall, John | | Adams | Dem | 67 | 1843 |
| Marshall, John G. | | Beaver | Rep | 123 | 1919-20 |
| Marshall, John G. | | Beaver | Rep | 124 | 1921-22 |
| Marshall, John G. | 2 | Beaver | Rep | 125 | 1923-24 |
| Marshall, John G. | 2 | Beaver | Rep | 126 | 1925-26 |
| Marshall, John H. | | Chester | Rep | 111 | 1895-96 |
| Marshall, John H. | | Chester | Rep | 112 | 1897-98 |
| Marshall, Kennedy | | Allegheny | Rep | 85 | 1861 |
| Marshall, Samuel | | Huntingdon | Fed | 21 | 1796-97 |
| Marshall, Samuel | | Huntingdon | Fed | 22 | 1797-98 |
| Marshall, W. H. | | Beaver | Rep | 106 | 1885-86 |
| Marshall, William F. | | Clarion | Dem | 125 | 1923-24 |
| Marshall, William L. | 8 | Philadelphia | Rep | 95 | 1871 |
| Marshall, William T. | 2 | Allegheny | Rep | 108 | 1889-90 |
| Marshall, William T. | 2 | Allegheny | Rep | 109 | 1891-92 |
| Marshall, William T. | 2 | Allegheny | Rep | 110 | 1893-94 |
| Marshall, William T. | 2 | Allegheny | Rep | 111 | 1895-96 |
| Marshall, William T. | 2 | Allegheny | Rep | 112 | 1897-98 |
| Marshall, William T. | 2 | Allegheny | Rep | 113 | 1899-00 |
| Marshall, William T. | 2 | Allegheny | Rep | 114 | 1901-02 |
| Marsico, Ronald S. | 105 | Dauphin | Rep | 175-76 | 1991-92 |
| Marsico, Ronald S. | 105 | Dauphin | Rep | 177-78 | 1993-94 |
| Marsico, Ronald S. | 105 | Dauphin | Rep | 179-80 | 1995-96 |
| Marsico, Ronald S. | 105 | Dauphin | Rep | 181-82 | 1997-98 |
| Marsico, Ronald S. | 105 | Dauphin | Rep | 183-84 | 1999-00 |
| Marsico, Ronald S. | 105 | Dauphin | Rep | 185-86 | 2001-02 |
| Marsico, Ronald S. | 105 | Dauphin | Rep | 187-88 | 2003-04 |
| Marsteller, Carl E. | | Mercer | Rep | 127 | 1927-28 |
| Marsteller, James L. | | Lehigh | Rep | 116 | 1905-06 |
| Martin, Abraham | | Bedford | Rep | 40 | 1815-16 |
| Martin, Abraham | | Bedford | Rep | 41 | 1816-17 |
| Martin, Adam | | Philadelphia | Whig | 73 | 1849 |
| Martin, Algernon L. | | Lawrence | Rep | 110 | 1893-94 |
| Martin, Algernon L. | | Lawrence | Rep | 111 | 1895-96 |
| Martin, Algernon L. | | Lawrence | Rep | 112 | 1897-98 |
| Martin, Amos H. | | Huntingdon, Mifflin, Juniata | Rep | 93 | 1869 |
| Martin, Benjamin | | Bedford | Quid | 30 | 1805-06 |
| Martin, Benjamin | | Bedford | Quid | 31 | 1806-07 |
| Martin, Benjamin | | Bedford | Const | 32 | 1807-08 |
| Martin, Benjamin | | Philadelphia | Dem | 52 | 1827-28 |
| Martin, Benjamin | | Philadelphia | Jack | 53 | 1828-29 |
| Martin, Benjamin | | Philadelphia | Dem-B | 54 | 1829-30 |
| Martin, Benjamin | | Bedford | Dem | 56 | 1831-32 |
| Martin, Benjamin F. | | Lancaster | Whig | 76 | 1852 |
| Martin, Francis | | Armstrong | Fusion | 104 | 1881-82 |
| Martin, Hugh | | Lancaster | Fed | 41 | 1816-17 |
| Martin, Hugh | | Lancaster | Fed | 42 | 1817-18 |
| Martin, Jacob H. | | Clarion | Dem | 111 | 1895-96 |
| Martin, Jesse | | Washington | Dem | 66 | 1842 |
| Martin, John M. | | Mercer | Rep | 111 | 1895-96 |
| Martin, John M. | | Mercer | Rep | 112 | 1897-98 |
| Martin, John M. | | Mercer | Rep | 113 | 1899-00 |
| Martin, John M. | | Mercer | Rep | 117 | 1907-08 |
| Martin, John M. | | Mercer | Rep | 118 | 1909-10 |
| Martin, John M. | | Mercer | Rep | 119 | 1911-12 |
| Martin, Joseph | | Northampton | Rep | 19 | 1794-95 |
| Martin, Joseph | | Northampton | Rep | 20 | 1795-96 |
| Martin, Joseph B. | 2 | Dauphin | Wash | 120 | 1913-14 |
| Martin, Joseph S. | | Juniata | Rep | 107 | 1887-88 |
| Martin, Nelson | | Mercer | Dem | 105 | 1883-84 |
| Martin, Richard | | Northumberland, Lycoming | Fed | 20 | 1795-96 |
| Martin, Richard | | Lycoming | Fed | 23 | 1798-99 |
| Martin, William | | Delaware | Fed | 52 | 1827-28 |
| Martin, William A. | | Adams | Dem | 101 | 1877 |
| Martin, William A. | | Adams | Dem | 102 | 1878 |
| Martin, William H. | 10 | Allegheny | Rep | 123 | 1919-20 |
| Martin, William H. | 10 | Allegheny | Rep | 124 | 1921-22 |
| Martino, Leonard L. | 21 | Allegheny | Dem | 153-54 | 1969-70 |
| Martino, Leonard L. | 21 | Allegheny | Dem | 155-56 | 1971-72 |
| Martino, Leonard L. | 21 | Allegheny | Dem | 157-58 | 1973-74 |
| Martz, Clarence C. | 5 | Philadelphia | Rep | 126 | 1925-26 |
| Martz, Clarence C. | 5 | Philadelphia | Rep | 127 | 1927-28 |
| Martz, John | | Northumberland | Dem | 57 | 1832-33 |
| Marvin, Alfred | | Pike | Rep | 117 | 1907-08 |
| Marvin, Alfred | | Pike | Rep | 118 | 1909-10 |
| Marvin, Alfred | | Pike | Rep | 119 | 1911-12 |
| Marvin, Frank H. | | Tioga | Rep | 121 | 1915-16 |
| Marvin, Frank H. | | Tioga | Rep | 122 | 1917-18 |
| Marx, George | | Berks, Schuylkill | Rep | 38 | 1813-14 |
| Marx, Samuel | | Lehigh, Carbon | Dem | 72 | 1848 |
| Marx, Samuel | | Lehigh, Carbon | Dem | 73 | 1849 |
| Marx, Samuel | | Lehigh, Carbon | Dem | 74 | 1850 |
| Masland, Albert H. | 199 | Cumberland | Rep | 177-78 | 1993-94 |
| Masland, Albert H. | 199 | Cumberland | Rep | 179-80 | 1995-96 |
| Masland, Albert H. | 199 | Cumberland | Rep | 181-82 | 1997-98 |
| Masland, Albert H. | 199 | Cumberland | Rep | 183-84 | 1999-00 |
| Mason, J. Gordon | 7 | Luzerne | Rep | 129 | 1931-32 |
| Mason, J. Gordon | 7 | Luzerne | Rep | 130 | 1933-34 |
| Mason, J. Gordon | 7 | Luzerne | Rep | 131 | 1935-36 |
| Mast, Carl H. | 1 | Berks | Dem | 127 | 1927-28 |
| Mast, Frank | | Armstrong | Rep | 110 | 1893-94 |
| Mast, Frank | | Armstrong | Rep | 111 | 1895-96 |
| Mastrangelo, Adriano | 183 | Philadelphia | Rep | 155-56 | 1971-72 |
| Mateer, H. H. | | Huntingdon | Rep | 99 | 1875 |
| Mateer, H. H. | | Huntingdon | Rep | 100 | 1876 |
| Mates, James B. | | Butler | Rep | 110 | 1893-94 |
| Mates, James B. | | Butler | Rep | 114 | 1901-02 |
| Mathay, Jacob | 21 | Philadelphia | Rep | 125 | 1923-24 |
| Mathay, Jacob | 21 | Philadelphia | Rep | 126 | 1925-26 |
| Mathay, Jacob | 21 | Philadelphia | Rep | 127 | 1927-28 |
| Mathay, Jacob | 21 | Philadelphia | Rep | 128 | 1929-30 |
| Mathay, Jacob | 22 | Philadelphia | Rep | 129 | 1931-32 |
| Mathay, Jacob | 22 | Philadelphia | Rep | 130 | 1933-34 |
| Mather, Henry | | Philadelphia | Dem | 71 | 1847 |
| Mather, John C. | | Bradford | Rep | 120 | 1913-14 |
| Mather, John C. | | Bradford | Rep | 121 | 1915-16 |
| Mather, Joseph T. | | Philadelphia City | Nat Rep | 58 | 1833-34 |
| Mather, Joseph T. | | Philadelphia City | Nat Rep | 59 | 1834-35 |
| Mathers, James | | Mifflin, Juniata | Dem | 60 | 1835-36 |
| Mathews, John | | Somerset, Cambria | Dem | 51 | 1826-27 |
| Mathews, John | | Somerset, Cambria | Dem | 52 | 1827-28 |
| Mathews, William T. | 4 | Philadelphia | Rep | 140 | 1953-54 |
| Mathewson, Constant | | Bradford | Dem | 51 | 1826-27 |
| Mathewson, Constant | | Bradford | Dem | 52 | 1827-28 |
| Matheys, John | | Montgomery | Dem | 51 | 1826-27 |
| Matheys, John | | Montgomery | Dem | 52 | 1827-28 |
| Matheys, John | | Montgomery | Jack | 53 | 1828-29 |
| Matheys, John | | Montgomery | Dem | 54 | 1829-30 |
| Mathiot, Jacob D. | | Westmoreland | Dem | 56 | 1831-32 |
| Mathiot, Jacob D. | | Westmoreland | Dem | 58 | 1833-34 |
| Matlack, Jesse | | Chester | Rep | 101 | 1877 |
| Matlack, Jesse | | Chester | Rep | 102 | 1878 |
| Matlack, Jesse | | Chester | Rep | 103 | 1879-80 |
| Matson, Albert J. | | York | Rep | 116 | 1905-06 |
| Matt, John T. | | Bedford | Dem | 119 | 1911-12 |
| Matt, John T. | | Bedford | Dem | 120 | 1913-14 |
| Matten, Charles C. | 4 | Schuylkill | Rep | 107 | 1887-88 |
| Matthews, Harry T. | 2 | Fayette | Dem | 132 | 1937-38 |
| Matthews, Harry T. | 2 | Fayette | Dem | 136 | 1945-46 |
| Matthews, Jacob F. | | Lycoming | Rep | 132 | 1937-38 |
| Matthews, Jacob F. | | Lycoming | Rep | 133 | 1939-40 |
| Matthews, John | | Somerset, Cambria | | 54 | 1829-30 |
| Matthias, Benjamin | | Philadelphia | Dem | 57 | 1832-33 |
| Matthias, Benjamin | | Philadelphia City | Whig | 70 | 1846 |
| Matthias, Benjamin | | Philadelphia City | Whig | 71 | 1847 |
| Mattox, John L. | | Venango | Rep | 110 | 1893-94 |
| Mattox, John L. | | Venango | Rep | 111 | 1895-96 |
| Matts, John | | Bucks | Dem | 49 | 1824-25 |
| Matts, John | | Bucks | Dem | 50 | 1825-26 |
| Matts, John | | Bucks | Dem | 51 | 1826-27 |
| Matts, John | | Bucks | Dem | 52 | 1827-28 |
| Maugle, John | | Bucks | Dem | 80 | 1856 |
| Maugle, John | | Bucks | Dem | 81 | 1857 |
| Maugle, John | | Bucks | Dem | 82 | 1858 |
| Maurer, James H. | 1 | Berks | Soc | 119 | 1911-12 |
| Maurer, James H. | 1 | Berks | Soc | 121 | 1915-16 |
| Maurer, James H. | 1 | Berks | Soc | 122 | 1917-18 |
| Maurer, Jeremiah | | Somerset | Rep | 111 | 1895-96 |
| Maurer, Joseph K. | | Schuylkill | Dem | 84 | 1860 |
| Maust, Fillmore | | Cumberland | Rep | 112 | 1897-98 |
| Maust, Fillmore | | Cumberland | Rep | 116 | 1905-06 |
| Mawhinney, Samuel L. | 2 | Allegheny | Rep | 105 | 1883-84 |
| Mawhinney, Samuel L. | 2 | Allegheny | Rep | 106 | 1885-86 |
| Mawhorter, Thomas | | Northampton | Rep | 21 | 1796-97 |
| Mawhorter, Thomas | | Northampton | Rep | 22 | 1797-98 |
| Maxey, William E. | | Susquehanna | Rep | 107 | 1887-88 |
| Maxey, William E. | | Susquehanna | Rep | 108 | 1889-90 |
| Maxwell, George E. | 2 | Philadelphia | Rep | 94 | 1870 |
| Maxwell, H. J. | 3 | Westmoreland | Dem | 134 | 1941-42 |
| Maxwell, H. J. | 3 | Westmoreland | Dem | 135 | 1943-44 |
| Maxwell, H. J. | 3 | Westmoreland | Dem | 139 | 1951-52 |
| Maxwell, H. J. | 3 | Westmoreland | Dem | 140 | 1953-54 |
| Maxwell, H. J. | 3 | Westmoreland | Dem | 141 | 1955-56 |
| Maxwell, H. J. | 3 | Westmoreland | Dem | 142 | 1957-58 |
| Maxwell, H. J. | 3 | Westmoreland | Dem | 143-4 | 1959-60 |
| Maxwell, H. J. | 3 | Westmoreland | Dem | 145-6 | 1961-62 |
| Maxwell, H. J. | 3 | Westmoreland | Dem | 147-8 | 1963-64 |
| Maxwell, James G. | | Columbia, Montour | Dem/Amer | 79 | 1855 |
| Maxwell, Robert | | Lancaster | Quid | 31 | 1806-07 |
| Maxwell, Robert | | Lancaster | Const | 32 | 1807-08 |
| Maxwell, Robert | | Lancaster | Fed | 33 | 1808-09 |
| Maxwell, Robert | | Lancaster | Fed | 34 | 1809-10 |
| Maxwell, Robert | | Lancaster | Fed | 37 | 1812-13 |
| Maxwell, Robert | | Lancaster | Fed | 38 | 1813-14 |
| May, Arthur J. | | Snyder | Rep | 145-6 | 1961-62 |
| May, Arthur J. | | Snyder | Rep | 147-8 | 1963-64 |
| May, John | | York | Dem | 65 | 1841 |
| Mayer, George | | Lancaster | Dem | 60 | 1835-36 |
| Mayer, Nathaniel | | Lancaster | Rep | 87 | 1863 |
| Mayer, Nathaniel | | Lancaster | Union | 88 | 1864 |
| Mayernik, David J. | 29 | Allegheny | Dem | 167-68 | 1983-84 |
| Mayernik, David J. | 29 | Allegheny | Dem | 169-70 | 1985-86 |
| Mayernik, David J. | 29 | Allegheny | Dem | 171-72 | 1987-88 |
| Mayernik, David J. | 29 | Allegheny | Dem | 173-74 | 1989-90 |
| Mayernik, David J. | 29 | Allegheny | Dem | 175-76 | 1991-92 |
| Mayernik, David J. | 29 | Allegheny | Dem | 177-78 | 1993-94 |
| Mayernik, David J. | 29 | Allegheny | Dem | 179-80 | 1995-96 |
| Mayernik, David J. | 29 | Allegheny | Dem | 181-82 | 1997-98 |
| Mayernik, David J. | 29 | Allegheny | Dem | 183-84 | 1999-00 |
| Mayernik, David J. | 29 | Allegheny | Dem | 185-86 | 2001-02 |
| Mayne, Joseph W. | | Lehigh | Dem | 114 | 1901-02 |
| Mayne, Joseph W. | | Lehigh | Dem | 115 | 1903-04 |
| Mazza, John | 1 | Washington | Rep | 137 | 1947-48 |
| Mazza, John | 1 | Washington | Rep | 139 | 1951-52 |
| McAbee, William | | York | Dem | 70 | 1846 |
| McAbee, William | | York | Whig | 71 | 1847 |
| McAdoo, Elmer E. | 1 | Westmoreland | Rep | 117 | 1907-08 |
| McAffee, James R. | | Indiana, Westmoreland | Union | 89 | 1865 |
| McAffee, James R. | | Indiana, Westmoreland | Union | 90 | 1866 |
| McAlee, Floyd B. | 2 | Northampton | Rep | 128 | 1929-30 |
| McAlee, Floyd B. | 2 | Northampton | Rep | 129 | 1931-32 |
| McAleer, Eugene J. | 25 | Philadelphia | Rep Fus | 119 | 1911-12 |
| McAleer, Eugene J. | 25 | Philadelphia | Rep | 120 | 1913-14 |
| McAlevy, William, Jr. | | Huntingdon | Rep | 36 | 1811-12 |
| McAlinn, Patrick F. | 1 | Philadelphia | Dem | 128 | 1929-30 |
| McAllister, Frank J. | 2 | Westmoreland | Rep | 120 | 1913-14 |
| McAllister, Theodore | | Adams | Rep | 111 | 1895-96 |
| McAllister, Thompson | | Franklin | Whig | 71 | 1847 |
| McAndrews, James F. | 5 | Lackawanna | Dem | 117 | 1907-08 |
| McAndrews, James F. | 5 | Lackawanna | Dem | 118 | 1909-10 |
| McAndrews, John P. | 6 | Luzerne | Dem | 113 | 1899-00 |
| McAneny, Joseph J. | 1 | Cambria | Dem | 149-50 | 1965-66 |
| McAneny, Joseph J. | 2 | Cambria | Dem | 151-52 | 1967-68 |
| McAneny, Joseph J. | 71 | Cambria | Dem | 153-54 | 1969-70 |
| McAnlis, James | | Lawrence | Rep | 113 | 1899-00 |
| McAnlis, James | | Lawrence | Rep | 114 | 1901-02 |
| McArdle, Joseph A. | 6 | Allegheny | Dem | 132 | 1937-38 |
| McArdle, Joseph H. | 13 | Philadelphia | Rep | 119 | 1911-12 |
| McArdle, Joseph H. | 13 | Philadelphia | Rep | 120 | 1913-14 |
| McArdle, Joseph H. | 13 | Philadelphia | Rep | 121 | 1915-16 |
| McArdle, Joseph H. | 13 | Philadelphia | Rep | 122 | 1917-18 |
| McArran, Frank E. | | Montour | Dem | 129 | 1931-32 |
| McAsey, James | 5 | Luzerne | Dem | 99 | 1875 |
| McAsey, James | 5 | Luzerne | Dem | 100 | 1876 |
| McAtee, Walter G. | 2 | Berks | Rep | 135 | 1943-44 |
| McAtee, Walter G. | 2 | Berks | Rep | 136 | 1945-46 |
| McAteer, Henry J. | | Huntingdon, Mifflin, Juniata | Dem | 94 | 1870 |
| McAteer, Henry J. | | Huntingdon, Mifflin, Juniata | Dem | 95 | 1871 |
| McAvoy, William A. | 26 | Philadelphia | Rep | 106 | 1885-86 |
| McBride, Cornelius J. | 11 | Allegheny | Rep | 124 | 1921-22 |
| McBride, Cornelius J. | 11 | Allegheny | Rep | 125 | 1923-24 |
| McBride, Cornelius J. | 11 | Allegheny | Rep | 126 | 1925-26 |
| McBride, Cornelius J. | 11 | Allegheny | Rep | 127 | 1927-28 |
| McBride, Henry | | Westmoreland | Dem | 67 | 1843 |
| McBride, Henry | | Westmoreland | Dem | 69 | 1845 |
| McBride, John | | Allegheny, Beaver, Butler | Rep | 28 | 1803-04 |
| McBride, Thomas | 2 | Philadelphia | Rep | 117 | 1907-08 |
| McBride, William | | Columbia | Dem | 47 | 1822-23 |
| McBride, William | | Columbia | Dem | 48 | 1823-24 |
| McBride, William | | Columbia | Dem | 51 | 1826-27 |
| McBride, William J. | 10 | Allegheny | Rep | 130 | 1933-34 |
| McCabe, J. E. | | Beaver | Dem | 105 | 1883-84 |
| McCachran, Robert, Jr. | | Cumberland | Dem | 103 | 1879-80 |
| McCachran, Robert, Jr. | | Cumberland | Dem | 104 | 1881-82 |
| McCaffrey, J. J. | 16 | Philadelphia | Dem | 106 | 1885-86 |
| McCahen, John J. | | Philadelphia | Dem | 66 | 1842 |
| McCall, Keith R. | 122 | Carbon | Dem | 175-76 | 1991-92 |
| McCall, Keith R. | 122 | Carbon | Dem | 177-78 | 1993-94 |
| McCall, Keith R. | 122 | Carbon | Dem | 179-80 | 1995-96 |
| McCall, Keith R. | 122 | Carbon | Dem | 181-82 | 1997-98 |
| McCall, Keith R. | 122 | Carbon | Dem | 183-84 | 1999-00 |
| McCall, Keith R. | 122 | Carbon | Dem | 185-86 | 2001-02 |
| McCall, Keith R. | 122 | Carbon | Dem | 187-88 | 2003-04 |
| McCall, Thomas | | Washington | Rep | 33 | 1808-09 |
| McCall, Thomas | | Washington | Rep | 34 | 1809-10 |
| McCall, Thomas | | Washington | Rep | 36 | 1811-12 |
| McCall, Thomas | | Washington | Rep | 37 | 1812-13 |
| McCall, Thomas | | Washington | Rep | 38 | 1813-14 |
| McCall, Thomas | | Washington | Dem | 45 | 1820-21 |
| McCall, Thomas | | Washington | Dem | 46 | 1821-22 |
| McCall, Thomas J. | 122 | Carbon | Dem | 159-60 | 1975-76 |
| McCall, Thomas J. | 122 | Carbon | Dem | 161-62 | 1977-78 |
| McCall, Thomas J. | 122 | Carbon | Dem | 163-64 | 1979-80 |
| McCall, Thomas J. | 122 | Carbon | Dem | 165-66 | 1981-82 |
| McCall, Thomas J. | 122 | Carbon | Dem | 167-68 | 1983-84 |
| McCall, Thomas J. | 122 | Carbon | Dem | 169-70 | 1985-86 |
| McCall, Thomas J. | 122 | Carbon | Dem | 171-72 | 1987-88 |
| McCall, Thomas J. | 122 | Carbon | Dem | 173-74 | 1989-90 |
| McCallister, Archibald | | Lancaster | Fed | 45 | 1820-21 |
| McCallister, William C. | 2 | Washington | Rep | 127 | 1927-28 |
| McCallister, William C. | 2 | Washington | Rep | 128 | 1929-30 |
| McCallister, William C. | 2 | Washington | Rep | 129 | 1931-32 |
| McCallum, Robert B. | 7 | Luzerne | Rep | 123 | 1919-20 |
| McCalmont, John S. | | Jefferson, Clarion, Venango | Dem | 73 | 1849 |
| McCalmont, John S. | | Jefferson, Clarion, Venango | Dem | 74 | 1850 |
| McCalmont, S. Plummer | | Mercer, Venango, Warren | Ind Amer | 79 | 1855 |
| McCalmont, S. Plummer | | Mercer, Venango, Warren | Opp | 80 | 1856 |
| McCalmont, S. Plummer | | Mercer, Venango, Warren | Opp | 81 | 1857 |
| McCamant, John | | Lancaster | Dem | 49 | 1824-25 |
| McCamant, John | | Lancaster | Dem | 52 | 1827-28 |
| McCamant, Samuel | | Blair | Rep | 91 | 1867 |
| McCamant, Samuel | | Blair | Rep ** | 92 | 1868 |
| McCandless, Albert L. | | Butler | Rep | 143-4 | 1959-60 |
| McCandless, Albert L. | | Butler | Rep | 145-6 | 1961-62 |
| McCandless, Albert L. | | Butler | Rep | 147-8 | 1963-64 |
| McCandless, Guy P. | 3 | Allegheny | Rep | 113 | 1899-00 |
| McCandless, Guy P. | 3 | Allegheny | Rep | 114 | 1901-02 |
| McCandless, James T. | | Butler | Rep | 130 | 1933-34 |
| McCandless, W. H. | | Lawrence | Rep | 103 | 1879-80 |
| McCann, Stephen | | Greene | Dem | 140 | 1953-54 |
| McCann, Stephen | | Greene | Dem | 141 | 1955-56 |
| McCann, Stephen | | Greene | Dem | 142 | 1957-58 |
| McCann, Stephen | | Greene | Dem | 143-4 | 1959-60 |
| McCann, Stephen | | Greene | Dem | 145-6 | 1961-62 |
| McCann, William F. | 2 | Allegheny | Rep | 124 | 1921-22 |
| McCann, William F. | 2 | Allegheny | Rep | 125 | 1923-24 |
| McCann, William F. | 2 | Allegheny | Rep | 126 | 1925-26 |
| McCann, William F. | 2 | Allegheny | Rep | 127 | 1927-28 |
| McCann, William F. | 2 | Allegheny | Rep | 128 | 1929-30 |
| McCarron, Charles | 4 | Luzerne | Dem | 101 | 1877 |
| McCarron, Charles | 4 | Luzerne | Dem | 102 | 1878 |
| McCarter, William J. | 17 | Philadelphia | Rep | 118 | 1909-10 |
| McCarthy, John | | Philadelphia | Dem | 80 | 1856 |
| McCarthy, John A. | 10 | Philadelphia | Rep | 115 | 1903-04 |
| McCarthy, Timothy J. | 8 | Philadelphia | Rep | 124 | 1921-22 |
| McCartney, Jacob | | Armstrong | Dem | 73 | 1849 |
| McCarty, Isaac | | Bucks | Dem | 60 | 1835-36 |
| McCarty, Nicholas H. | | Bucks | Whig | 67 | 1843 |
| McCarty, Nicholas H. | | Bucks | Whig | 68 | 1844 |
| McCaslin, Maxwell | | Greene | Dem | 67 | 1843 |
| McCaslin, Maxwell | | Greene | Dem | 68 | 1844 |
| McCaslin, Maxwell | | Greene | Dem | 69 | 1845 |
| McClain, David R. | | Philadelphia | Dem | 82 | 1858 |
| McClain, David R. | 3 | Philadelphia | Dem | 83 | 1859 |
| McClain, Frank B. | 1 | Lancaster | Rep | 111 | 1895-96 |
| McClain, Frank B. | 1 | Lancaster | Rep | 112 | 1897-98 |
| McClain, Frank B. | 1 | Lancaster | Rep | 113 | 1899-00 |
| McClain, Frank B. | 1 | Lancaster | Rep | 114 | 1901-02 |
| McClain, Frank B. | 1 | Lancaster | Rep | 115 | 1903-04 |
| McClain, Frank B. | 1 | Lancaster | Rep | 116 | 1905-06 |
| McClain, Frank B. | 1 | Lancaster | Rep | 117 | 1907-08 |
| McClain, Frank B. | 1 | Lancaster | Rep | 118 | 1909-10 |
| McClanaghan, Francis X. | 10 | Philadelphia | Dem | 134 | 1941-42 |
| McClaran, William, Jr. | | Indiana | Whig | 62 | 1837-38 |
| McClaran, William, Jr. | | Indiana | Whig | 63 | 1838-39 |
| McClarran, Robert M. | 4 | Allegheny | Rep | 104 | 1881-82 |
| McClarran, Robert M. | 4 | Allegheny | Rep | 105 | 1883-84 |
| McClatchy, Richard A., Jr. | 149 | Montgomery | Rep | 153-54 | 1969-70 |
| McClatchy, Richard A., Jr. | 149 | Montgomery | Rep | 155-56 | 1971-72 |
| McClatchy, Richard A., Jr. | 149 | Montgomery | Rep | 157-58 | 1973-74 |
| McClatchy, Richard A., Jr. | 149 | Montgomery | Rep | 159-60 | 1975-76 |
| McClatchy, Richard A., Jr. | 149 | Montgomery | Rep | 161-62 | 1977-78 |
| McClatchy, Richard A., Jr. | 149 | Montgomery | Rep | 163-64 | 1979-80 |
| McClatchy, Richard A., Jr. | 149 | Montgomery | Rep | 165-66 | 1981-82 |
| McClatchy, Richard A., Jr. | 149 | Montgomery | Rep | 167-68 | 1983-84 |
| McClatchy, Richard A., Jr. | 149 | Montgomery | Rep | 169-70 | 1985-86 |
| McClatchy, Richard A., Jr. | 149 | Montgomery | Rep | 171-72 | 1987-88 |
| McClatchy, Richard A., Jr. | 149 | Montgomery | Rep | 173-74 | 1989-90 |
| McClay, John | | Franklin | | 16 | 1791-92 |
| McClean, Moses | | Adams | Dem | 79 | 1855 |
| McClean, Samuel | | Chester | Adams | 53 | 1828-29 |
| McCleane, Samuel | | Chester | Dem | 58 | 1833-34 |
| McCleary, J. B. | 19 | Philadelphia | Rep | 101 | 1877 |
| McCleary, J. B. | 19 | Philadelphia | Rep | 102 | 1878 |
| McCleary, J. B. | 19 | Philadelphia | Rep | 104 | 1881-82 |
| McClellan, Hersh | 26 | Philadelphia | Rep | 113 | 1899-00 |
| McClellan, James A. | | Fayette | Dem | 58 | 1833-34 |
| McClellan, James A. | | Fayette | Dem | 61 | 1836-37 |
| McClellan, James A. | | Fayette | Dem | 62 | 1837-38 |
| McClellan, John | | York | Quid | 30 | 1805-06 |
| McClellan, John | | York | Const | 32 | 1807-08 |
| McClellan, Robert L. | | Chester | Rep | 86 | 1862 |
| McClellan, Robert L. | | Chester | Rep | 87 | 1863 |
| McClellan, Robert L. | | Chester | Union | 88 | 1864 |
| McClellan, William | | York | Dem | 58 | 1833-34 |
| McClellan, William | | York | Dem | 59 | 1834-35 |
| McClellan, William J. | | York | Dem | 115 | 1903-04 |
| McClelland, James A. | | Fayette | Opp | 60 | 1835-36 |
| McClelland, Robert | | Beaver | Dem | 70 | 1846 |
| McClelland, William | | Franklin | Quid | 31 | 1806-07 |
| McClenachan, Blair | | Philadelphia | Rep | 20 | 1795-96 |
| McClenachan, Blair | | Philadelphia | Rep | 16 | 1791-92 |
| McClenachan, Blair | | Philadelphia | Rep | 15 | 1790-91 |
| McClenahan, Andrew | | Northumberland | Rep | 36 | 1811-12 |
| McClenahan, Andrew | | Northumberland | Rep | 37 | 1812-13 |
| McClester, Albert B. | | Butler | Rep | 133 | 1939-40 |
| McClester, Albert B. | | Butler | Rep | 134 | 1941-42 |
| McClester, Albert B. | | Butler | Rep | 135 | 1943-44 |
| McClester, Albert B. | | Butler | Rep | 136 | 1945-46 |
| McClintic, Joseph H. | | Mifflin | Rep | 109 | 1891-92 |
| McClintic, Joseph H. | | Mifflin | Rep | 110 | 1893-94 |
| McClintock, John | 21 | Philadelphia | Key Fus | 120 | 1913-14 |
| McClintock, John | 21 | Philadelphia | Rep | 121 | 1915-16 |
| McClintock, Jonas R. | | Allegheny | Dem | 74 | 1850 |
| McCloskey, Richard | 3 | Philadelphia | Dem | 103 | 1879-80 |
| McCloskey, Richard | 3 | Philadelphia | Dem | 104 | 1881-82 |
| McClung, Horace A. | 7 | Allegheny | Rep | 118 | 1909-10 |
| McClung, Horace A. | 4 | Allegheny | Rep | 119 | 1911-12 |
| McClure, Alexander K. | | Franklin, Fulton | Rep | 82 | 1858 |
| McClure, Alexander K. | | Franklin, Fulton, Perry | Rep | 83 | 1859 |
| McClure, Alexander K. | | Franklin, Perry | Union | 89 | 1865 |
| McClure, Charles | | Cumberland | Opp | 60 | 1835-36 |
| McClure, Daniel W. | | Beaver | Rep | 124 | 1921-22 |
| McClure, Francis | | Allegheny, Beaver, Butler | * Convent | 30 | 1805-06 |
| McClure, Francis | | Allegheny, Beaver, Butler | Convent | 31 | 1806-07 |
| McClure, Francis | | Allegheny, Beaver, Butler | Rep | 32 | 1807-08 |
| McClure, Francis | | Allegheny, Butler | Rep | 33 | 1808-09 |
| McClure, Harvey D. | 1 | Erie | Rep | 147-8 | 1963-64 |
| McClure, James | | Columbia | Rep | 40 | 1815-16 |
| McClure, James | | Columbia | Dem | 44 | 1819-20 |
| McClure, James F. | | Union | Rep | 126 | 1925-26 |
| McClure, James H. | 10 | Allegheny | Rep | 125 | 1923-24 |
| McClure, James H. | 10 | Allegheny | Rep | 126 | 1925-26 |
| McClure, James H. | 10 | Allegheny | Rep | 127 | 1927-28 |
| McClure, James H. | 10 | Allegheny | Rep | 128 | 1929-30 |
| McClure, James H. | 10 | Allegheny | Rep | 129 | 1931-32 |
| McClure, James H. | 10 | Allegheny | Rep | 130 | 1933-34 |
| McClure, John K. | | Beaver | Rep | 121 | 1915-16 |
| McClure, Joseph | | Lancaster | Whig | 65 | 1841 |
| McClure, Joseph | | Lancaster | Whig | 66 | 1842 |
| McClure, Robert | | Lycoming, Potter, McKean, Tioga | Fed | 47 | 1822-23 |
| McClure, Robert | | Lycoming, Potter, McKean, Tioga | Fed | 49 | 1824-25 |
| McClure, Robert | | Lycoming, Potter, McKean, Tioga | Fed | 51 | 1826-27 |
| McClure, William | | Dauphin | Whig | 64 | 1840 |
| McClure, William J. | | Adams | Dem | 101 | 1877 |
| McClure, William J. | | Adams | Dem | 102 | 1878 |
| McCluskey, John | | Allegheny | Whig | 75 | 1851 |
| McCluskey, John | | Allegheny | Whig | 76 | 1852 |
| McCollough, James M. | | Butler | Rep | 122 | 1917-18 |
| McComb, James | | Westmoreland, Armstrong, Indiana | Rep | 28 | 1803-04 |
| McComb, James | | Westmoreland, Armstrong, Indiana, Jefferson | Rep | 29 | 1804-05 |
| McComb, James | | Westmoreland, Armstrong, Indiana, Jefferson | Quid | 30 | 1805-06 |
| McComb, James | | Westmoreland, Armstrong, Indiana, Jefferson | Quid | 31 | 1806-07 |
| McComb, James | | Westmoreland, Armstrong, Indiana, Jefferson | Const | 32 | 1807-08 |
| McComb, James | | Armstrong, Indiana, Jefferson | Rep(fed) | 34 | 1809-10 |
| McComb, James | | Armstrong, Indiana, Jefferson | Rep | 35 | 1810-11 |
| McComb, James | | Armstrong, Indiana, Jefferson | Rep | 36 | 1811-12 |
| McComb, James | | Armstrong, Indiana, Jefferson | Rep | 37 | 1812-13 |
| McComb, James | | Armstrong, Indiana, Jefferson | Fed | 38 | 1813-14 |
| McCombs, Robert B. | | Beaver, Butler, Lawrence | Whig | 78 | 1854 |
| McCombs, Robert B. | | Beaver, Butler, Lawrence | Whig | 79 | 1855 |
| McCombs, Robert B. | | Beaver, Butler, Lawrence | Opp | 80 | 1856 |
| McConkey, Andrew | | York | Dem | 54 | 1829-30 |
| McConkey, Andrew | | York | Dem | 55 | 1830-31 |
| McConkey, William | | York | Amer Whig | 79 | 1855 |
| McConnell, Alexander | | Indiana | Whig | 76 | 1852 |
| McConnell, Alexander | | Indiana | Whig | 77 | 1853 |
| McConnell, Alexander | | Indiana | Whig | 78 | 1854 |
| McConnell, Alexander | | Indiana | Whig | 79 | 1855 |
| McConnell, Alexander | 2 | Westmoreland | Rep | 124 | 1921-22 |
| McConnell, Calvin Bruce | | Mercer | Rep | 121 | 1915-16 |
| McConnell, George F. | | Mercer | Rep | 139 | 1951-52 |
| McConnell, Henry L. | | Huntingdon | Dem | 60 | 1835-36 |
| McConnell, J. W. | | Mercer | Rep | 103 | 1879-80 |
| McConnell, James | | Franklin | Rep | 29 | 1804-05 |
| McConnell, James | | Franklin | Convent | 30 | 1805-06 |
| McConnell, James | 6 | Philadelphia | Rep | 112 | 1897-98 |
| McConnell, James | 6 | Philadelphia | Rep | 113 | 1899-00 |
| McConnell, Malcolm | | Lawrence | Rep | 114 | 1901-02 |
| McConnell, Malcolm | | Lawrence | Rep | 115 | 1903-04 |
| McConnell, Robert A. | | Greene | Dem | 95 | 1871 |
| McConnell, Robert A. | | Greene | Dem | 96 | 1872 |
| McConnell, William Wirt | | Chester | Rep | 107 | 1887-88 |
| McConnell, William Wirt | | Chester | Rep | 108 | 1889-90 |
| McCord, Ira D. | | Chester | Rep | 118 | 1909-10 |
| McCormack, John R. | 8 | Philadelphia | Rep | 136 | 1945-46 |
| McCormack, John R. | 8 | Philadelphia | Rep | 137 | 1947-48 |
| McCormack, John R. | 8 | Philadelphia | Rep | 138 | 1949-50 |
| McCormack, John R. | 8 | Philadelphia | Rep | 139 | 1951-52 |
| McCormack, Thomas J. | 26 | Philadelphia | Dem | 140 | 1953-54 |
| McCormack, Thomas J. | 19 | Philadelphia | Dem | 141 | 1955-56 |
| McCormack, Thomas J. | 19 | Philadelphia | Dem | 142 | 1957-58 |
| McCormack, Thomas J. | 19 | Philadelphia | Dem | 143-4 | 1959-60 |
| McCormack, Thomas J. | 19 | Philadelphia | Dem | 145-6 | 1961-62 |
| McCormick, Henry H. | 1 | Pittsburg | Rep | 97 | 1873 |
| McCormick, Henry H. | 1 | Pittsburg | Rep | 98 | 1874 |
| McCormick, James | | Montour | Dem | 101 | 1877 |
| McCormick, James | | Montour | Dem | 102 | 1878 |
| McCormick, James | | Montour | Dem | 105 | 1883-84 |
| McCormick, John T. | | Centre | Dem | 109 | 1891-92 |
| McCormick, John T. | | Centre | Dem | 110 | 1893-94 |
| McCormick, Paul K. | 3 | Westmoreland | Rep | 126 | 1925-26 |
| McCormick, Paul K. | 3 | Westmoreland | Rep | 127 | 1927-28 |
| McCormick, R. H. | | Indiana, Westmoreland | Rep | 92 | 1868 |
| McCosker, Henrietta | 18 | Philadelphia | Rep | 137 | 1947-48 |
| McCoy, Charles E. | 9 | Philadelphia | Rep | 104 | 1881-82 |
| McCoy, Hiram C. | | Butler | Rep | 86 | 1862 |
| McCoy, Hiram C. | | Butler | Rep | 87 | 1863 |
| McCoy, Joseph | | Philadelphia City | Rep | 38 | 1813-14 |
| McCracken, George W. | | Mercer, Lawrence, Butler | Rep | 94 | 1870 |
| McCracken, George W. | | Lawrence | Rep | 97 | 1873 |
| McCraig, William J. | 2 | Allegheny | Rep | 120 | 1913-14 |
| McCraig, William J. | 2 | Allegheny | Rep | 121 | 1915-16 |
| McCraig, William J. | 2 | Allegheny | Rep | 122 | 1917-18 |
| McCraig, William J. | 2 | Allegheny | Rep | 123 | 1919-20 |
| McCraig, William J. | 2 | Allegheny | Rep | 124 | 1921-22 |
| McCraig, William J. | 2 | Allegheny | Rep | 125 | 1923-24 |
| McCraig, William J. | 2 | Allegheny | Rep | 126 | 1925-26 |
| McCreary, David B. | | Erie | Union | 90 | 1866 |
| McCreary, David B. | | Erie | Rep | 91 | 1867 |
| McCreary, David B. | | Erie, | Rep | 94 | 1870 |
| McCreary, R. D. | | Venango | Rep | 97 | 1873 |
| McCreary, R. D. | | Venango | Rep | 98 | 1874 |
| McCreary, Ralph S. | 4 | Erie | Rep | 130 | 1933-34 |
| McCreary, Ralph S. | 4 | Erie | Rep | 131 | 1935-36 |
| McCreary, William | | Washington | Dem | 49 | 1824-25 |
| McCreary, William | | Washington | Dem | 51 | 1826-27 |
| McCreary, William | | Washington | Dem | 52 | 1827-28 |
| McCreary, William | | Washington | Dem | 58 | 1833-34 |
| McCreery, William | | Washington | Dem | 50 | 1825-26 |
| McCreight, James | | Dauphin | Rep | 15 | 1790-91 |
| McCrum, John | | Union, Juniata | Whig | 70 | 1846 |
| McCrum, John H. | | Mifflin, Juniata, Union | Whig | 66 | 1842 |
| McCrum, Joseph J. | | Crawford | Dem | 105 | 1883-84 |
| McCue, John B. | | Armstrong | Rep | 147-8 | 1963-64 |
| McCue, John B. | 61 | Armstrong | Rep | 155-56 | 1971-72 |
| McCue, John B. | 60 | Armstrong | Rep | 157-58 | 1973-74 |
| McCue, John B. | 60 | Armstrong | Rep | 159-60 | 1975-76 |
| McCullagh, William L. | 7 | Allegheny | Rep | 117 | 1907-08 |
| McCulloch, George | | Centre | Dem | 67 | 1843 |
| McCulloch, James A. | | Armstrong, Westmoreland | Dem | 86 | 1862 |
| McCulloch, James A. | | Armstrong, Westmoreland | Dem | 87 | 1863 |
| McCulloch, John F. | | Westmoreland | Dem | 72 | 1848 |
| McCulloch, John F. | | Westmoreland | Dem | 73 | 1849 |
| McCulloch, John F. | | Westmoreland | Dem | 74 | 1850 |
| McCulloh, Thomas G. | | Franklin | Nat Rep | 56 | 1831-32 |
| McCulloh, Thomas G. | | Franklin | Dem | 57 | 1832-33 |
| McCulloh, Thomas G. | | Franklin | Opp | 59 | 1834-35 |
| McCullough, James | | Washington | Whig/Amer | 79 | 1855 |
| McCullough, John | 7 | Philadelphia | Rep | 97 | 1873 |
| McCullough, John | 7 | Philadelphia | Rep | 98 | 1874 |
| McCullough, John | 10 | Philadelphia | Rep | 106 | 1885-86 |
| McCullough, Michael | | Berks | Dem | 97 | 1873 |
| McCullough, Michael | | Berks | Dem | 98 | 1874 |
| McCullough, Thomas J. | | Clearfield, Elk, Forest | Dem | 92 | 1868 |
| McCullough, Thomas J. | | Clearfield, Forest, Elk | Dem | 93 | 1869 |
| McCullough, Ward | | Armstrong | Dem | 132 | 1937-38 |
| McCullough, William | | Lancaster | Fed | 45 | 1820-21 |
| McCullough, William H. | 7 | Allegheny | Rep | 108 | 1889-90 |
| McCullough, William H. | 7 | Allegheny | Rep | 109 | 1891-92 |
| McCullough, William H. | 2 | Lawrence | Rep | 137 | 1947-48 |
| McCullough, William H. | 2 | Lawrence | Rep | 138 | 1949-50 |
| McCullough, William H. | 2 | Lawrence | Rep | 139 | 1951-52 |
| McCullough, William H. | 2 | Lawrence | Rep | 140 | 1953-54 |
| McCully, Thomas | | Philadelphia | Dem | 65 | 1841 |
| McCune, Adley C. | | Fayette | Rep | 114 | 1901-02 |
| McCune, James | | Huntingdon | Convent | 30 | 1805-06 |
| McCune, James | | Huntingdon | Convent | 31 | 1806-07 |
| McCune, Joseph | | Huntingdon | Rep | 29 | 1804-05 |
| McCune, Seth R. | | Blair, Huntingdon | Whig | 75 | 1851 |
| McCune, Seth R. | | Blair, Huntingdon | Whig | 76 | 1852 |
| McCune, Seth R. | | Blair | Rep | 97 | 1873 |
| McCune, Seth R. | | Blair | Rep | 98 | 1874 |
| McCurdy, Alexander C. | | York | Dem | 74 | 1850 |
| McCurdy, Alexander C. | | York | Dem | 75 | 1851 |
| McCurdy, Daniel | | Allegheny | Whig | 65 | 1841 |
| McCurdy, Daniel | | Allegheny | Whig | 70 | 1846 |
| McCurdy, Daniel | | Allegheny | Whig | 71 | 1847 |
| McCurdy, Donald M. | 7 | Delaware | Rep | 151-52 | 1967-68 |
| McCurdy, Donald M. | 165 | Delaware | Rep | 153-54 | 1969-70 |
| McCurdy, Donald M. | 165 | Delaware | Rep | 155-56 | 1971-72 |
| McCurdy, Donald M. | 165 | Delaware | Rep | 157-58 | 1973-74 |
| McCurdy, John | | Cumberland, Perry | Rep | 83 | 1859 |
| McCurdy, John | | Cumberland, Perry | Rep | 84 | 1860 |
| McCurdy, Samuel | 2 | Blair | Rep | 121 | 1915-16 |
| McCurdy, Samuel | 2 | Blair | Rep | 122 | 1917-18 |
| McCurdy, Samuel | 2 | Blair | Rep | 123 | 1919-20 |
| McCurdy, Samuel | 2 | Blair | Rep | 124 | 1921-22 |
| McCurdy, Samuel | 2 | Blair | Rep | 125 | 1923-24 |
| McCurdy, William | | Adams | Dem | 61 | 1836-37 |
| McCurley, Jacob | | Union, Juniata | Whig | 70 | 1846 |
| McCurley, Jacob | | Union, Juniata | Whig | 71 | 1847 |
| McDaniel, Emmitt J. | 2 | Fayette | Rep | 125 | 1923-24 |
| McDaniel, Emmitt J. | 2 | Fayette | Rep | 126 | 1925-26 |
| McDaniel, William | | Washington | Whig | 67 | 1843 |
| McDermit, Raymond E. | 1 | Cambria | Dem | 139 | 1951-52 |
| McDermit, Raymond E. | 1 | Cambria | Dem | 140 | 1953-54 |
| McDermott, James J. | 1 | Lehigh | Dem | 131 | 1935-36 |
| McDermott, James J. | 1 | Lehigh | Dem | 132 | 1937-38 |
| McDermott, James J. | 1 | Lehigh | Dem | 134 | 1941-42 |
| McDermott, John, Jr. | 1 | Philadelphia | Rep | 121 | 1915-16 |
| McDermott, Patrick | 2 | Cambria | Dem | 125 | 1923-24 |
| McDermott, Patrick | 2 | Cambria | Dem | 126 | 1925-26 |
| McDermott, Peter | | Clearfield | Dem | 120 | 1913-14 |
| McDevitt, Daniel F. | 1 | Berks | Dem | 145-6 | 1961-62 |
| McDevitt, Daniel F. | 1 | Berks | Dem | 147-8 | 1963-64 |
| McDevitt, John J., III | 15 | Philadelphia | Rep | 131 | 1935-36 |
| McDevitt, John J., III | 15 | Philadelphia | Rep | 132 | 1937-38 |
| McDonald, Albert | 12 | Philadelphia | Rep | 137 | 1947-48 |
| McDonald, Edward | | Washington | Dem | 60 | 1835-36 |
| McDonald, Edward J. | 2 | Cambria | Dem | 128 | 1929-30 |
| McDonald, Henry | 1 | Philadelphia | Rep | 105 | 1883-84 |
| McDonald, Henry | 1 | Philadelphia | Rep | 106 | 1885-86 |
| McDonald, John J. | 1 | Schuylkill | Dem | 143-4 | 1959-60 |
| McDonald, John J. | 1 | Schuylkill | Dem | 145-6 | 1961-62 |
| McDonald, John N. | | Washington | Whig | 77 | 1853 |
| McDonald, John N. | | Washington | Rep | 82 | 1858 |
| McDonald, Joseph | | Cambria | Dem | 105 | 1883-84 |
| McDonald, Michael E. | 8 | Luzerne & Lackawanna | Dem | 107 | 1887-88 |
| McDonald, Michael E. | 4 | Lackawanna | Dem | 108 | 1889-90 |
| McDonald, William J. | 2 | Allegheny | Rep | 110 | 1893-94 |
| McDonald, William J. | 2 | Allegheny | Rep | 111 | 1895-96 |
| McDonald, William J. | 2 | Allegheny | Rep | 112 | 1897-98 |
| McDonough, James A. | | Fulton | Dem | 118 | 1909-10 |
| McDonough, Patrick | 3 | Philadelphia | Dem | 84 | 1860 |
| McDonough, Patrick | 3 | Philadelphia | Dem | 85 | 1861 |
| McDowell, Charles | | Bedford | Dem | 57 | 1832-33 |
| McDowell, Jack J. | | McKean | Rep | 134 | 1941-42 |
| McDowell, Jack J. | | McKean | Rep | 135 | 1943-44 |
| McDowell, Jack J. | | McKean | Rep | 136 | 1945-46 |
| McDowell, James D. | | Franklin | Rep | 104 | 1881-82 |
| McDowell, John | | Chester | | 15 | 1790-91 |
| McDowell, John | | Washington | Rep | 23 | 1798-99 |
| McDowell, John | | Washington | Rep | 24 | 1799-1800 |
| McDowell, John | | Washington | Rep | 25 | 1800-01 |
| McDowell, John | | Chester | Fed | 26 | 1801-02 |
| McDowell, John | | Washington | Rep | 26 | 1801-02 |
| McDowell, John | | Allegheny | Whig | 63 | 1838-39 |
| McDowell, John | | Allegheny | Whig | 64 | 1840 |
| McDowell, R. P. | | Allegheny | Rep | 83 | 1859 |
| McDowell, Thomas R. | | Chester | Rep | 118 | 1909-10 |
| McDowell, William S. | | Franklin | Dem | 58 | 1833-34 |
| McElevy, William, Jr. | | Huntingdon | Rep | 34 | 1809-10 |
| McElevy, William, Jr. | | Huntingdon | Rep | 35 | 1810-11 |
| McElhany, William W. | 3 | Allegheny | Rep | 112 | 1897-98 |
| McElhany, William W. | 3 | Allegheny | Rep | 113 | 1899-00 |
| McElroy, James | | Indiana, Westmoreland | Union | 89 | 1865 |
| McElroy, James | | Indiana, Westmoreland | Union | 90 | 1866 |
| McElroy, John | | Bucks | Rep | 25 | 1800-01 |
| McElroy, John | | Bucks | Rep | 26 | 1801-02 |
| McElroy, John | | Bucks | Rep | 27 | 1802-03 |
| McElroy, John E. | 9 | Allegheny | Dem | 131 | 1935-36 |
| McElroy, John E. | 9 | Allegheny | Dem | 132 | 1937-38 |
| McElroy, Joseph M. | | McKean | Rep | 115 | 1903-04 |
| McElroy, Joseph M. | | McKean | Rep | 116 | 1905-06 |
| McElroy, Samuel, Jr. | 4 | Allegheny | Rep | 101 | 1877 |
| McElroy, Samuel, Jr. | 4 | Allegheny | Rep | 102 | 1878 |
| McElwee, Thomas B. | | Bedford | Nat Rep | 58 | 1833-34 |
| McElwee, Thomas B. | | Bedford | Dem | 59 | 1834-35 |
| McElwee, Thomas B. | | Bedford | Dem | 62 | 1837-38 |
| McElwee, Thomas B. | | Bedford | Dem | 63 | 1838-39 |
| McElwee, Thomas B. | | Bedford | Dem | 64 | 1840 |
| McElwee, William, Jr. | 2 | Lawrence | Rep | 129 | 1931-32 |
| McElwee, William, Jr. | 2 | Lawrence | Rep | 130 | 1933-34 |
| McEwen, James | | Philadelphia | Dem | 51 | 1826-27 |
| McEwen, John | | Indiana | Whig | 67 | 1843 |
| McEwen, John | | Indiana | Whig | 68 | 1844 |
| McEwen, Thomas (McEuen) | | Philadelphia City | Fed | 35 | 1810-11 |
| McEwen, Thomas | | Philadelphia City | Fed | 36 | 1811-12 |
| McEwen, Thomas | | Philadelphia City | Rep | 39 | 1814-15 |
| McEwen, Thomas | | Philadelphia City | Fed | 40 | 1815-16 |
| McEwen, Thomas | | Philadelphia City | Fed | 41 | 1816-17 |
| McFadden, Obediah B. | | Washington | Dem | 68 | 1844 |
| McFall, Charles | 2 | Northampton | Dem | 132 | 1937-38 |
| McFall, Charles | 2 | Northampton | Dem | 134 | 1941-42 |
| McFarlan, G. S. | 1 | Berks | Dem | 103 | 1879-80 |
| McFarlan, G. S. | 1 | Berks | Dem | 104 | 1881-82 |
| McFarland, Abel | | Washington | Convent | 31 | 1806-07 |
| McFarland, Abel | | Washington | Rep | 32 | 1807-08 |
| McFarland, Abel | | Washington | Rep | 33 | 1808-09 |
| McFarland, James | | Berks | Rep | 33 | 1808-09 |
| McFarland, John | | Indiana | Whig | 69 | 1845 |
| McFarland, John | | Indiana | Whig | 70 | 1846 |
| McFarlane, George L. | 5 | Allegheny | Rep | 111 | 1895-96 |
| McFarlane, George L. | 5 | Allegheny | Rep | 112 | 1897-98 |
| McFarlane, George L. | 5 | Allegheny | Rep | 113 | 1899-00 |
| McFarlane, James | | Mifflin | Rep | 19 | 1794-95 |
| McFarlane, James | | Mifflin | Rep | 20 | 1795-96 |
| McFarlane, James | | Mifflin | Rep | 21 | 1796-97 |
| McFarlane, James | | Mifflin | Rep | 27 | 1802-03 |
| McFarlane, James | | Mifflin | Rep | 28 | 1803-04 |
| McFarren, James | | Washington | Dem | 66 | 1842 |
| McFee, John | | Philadelphia | Dem | 44 | 1819-20 |
| McGarrity, James A. | 22 | Philadelphia | Rep | 133 | 1939-40 |
| McGaughey, John | | Indiana | Rep | 111 | 1895-96 |
| McGaughey, John | | Indiana | Rep | 112 | 1897-98 |
| McGaughey, John | | Indiana | Rep | 113 | 1899-00 |
| McGeary, J. Grant | 2 | Westmoreland | Rep | 123 | 1919-20 |
| McGee, Joseph A. | 22 | Philadelphia | Dem | 138 | 1949-50 |
| McGee, Joseph A. | 22 | Philadelphia | Dem | 139 | 1951-52 |
| McGee, Joseph A. | 22 | Philadelphia | Dem | 140 | 1953-54 |
| McGee, Joseph A. | 31 | Philadelphia | Dem | 141 | 1955-56 |
| McGee, Joseph A. | 31 | Philadelphia | Dem | 142 | 1957-58 |
| McGee, Leonard J. | 21 | Philadelphia | Dem | 132 | 1937-38 |
| McGeehan, Michael Patrick | 173 | Philadelphia | Dem | 175-76 | 1991-92 |
| McGeehan, Michael Patrick | 173 | Philadelphia | Dem | 177-78 | 1993-94 |
| McGeehan, Michael Patrick | 173 | Philadelphia | Dem | 179-80 | 1995-96 |
| McGeehan, Michael Patrick | 173 | Philadelphia | Dem | 181-82 | 1997-98 |
| McGeehan, Michael Patrick | 173 | Philadelphia | Dem | 183-84 | 1999-00 |
| McGeehan, Michael Patrick | 173 | Philadelphia | Dem | 185-86 | 2001-02 |
| McGeehan, Michael Patrick | 173 | Philadelphia | Dem | 187-88 | 2003-04 |
| McGhee, John C. | | Clinton, Lycoming, Potter | Opp | 80 | 1856 |
| McGiffen, Norton | | Washington | Rep | 104 | 1881-82 |
| McGill, Eugene F. | 151 | Montgomery | Rep | 179-80 | 1995-96 |
| McGill, Eugene F. | 151 | Montgomery | Rep | 181-82 | 1997-98 |
| McGill, Eugene F. | 151 | Montgomery | Rep | 183-84 | 1999-00 |
| McGill, Eugene F. | 151 | Montgomery | Rep | 185-86 | 2001-02 |
| McGill, Eugene F. | 151 | Montgomery | Rep | 187-88 | 2003-04 |
| McGill, W. R. | | Crawford | Dem | 110 | 1893-94 |
| McGinnis, Clair E. | 7 | Allegheny | Dem | 130 | 1933-34 |
| McGinnis, John | 2 | Philadelphia | Dem | 92 | 1868 |
| McGinnis, John | 2 | Philadelphia | Dem | 93 | 1869 |
| McGinnis, Patrick J. | 61 | Montgomery | Rep | 157-58 | 1973-74 |
| McGinnis, Patrick J. | 61 | Montgomery | Rep | 159-60 | 1975-76 |
| McGinnis, Patrick J. | 61 | Montgomery | Rep | 161-62 | 1977-78 |
| McGlathery, Grant R. | | Montgomery | Rep | 114 | 1901-02 |
| McGonigal, J. R. | | Armstrong, Westmoreland | Rep | 84 | 1860 |
| McGonigal, J. R. | | Armstrong, Westmoreland | Rep | 85 | 1861 |
| McGough, Thomas | | Venango | Rep | 112 | 1897-98 |
| McGowan, Edward | | Philadelphia | Dem | 67 | 1843 |
| McGowan, George | 2 | Philadelphia | Dem | 95 | 1871 |
| McGowan, George | 2 | Philadelphia | Dem | 96 | 1872 |
| McGowan, George E. | 2 | Philadelphia | Dem | 106 | 1885-86 |
| McGowan, George E. | 2 | Philadelphia | Dem | 107 | 1887-88 |
| McGowan, Howard G. | 2 | Berks | Dem | 117 | 1907-08 |
| McGowan, Howard G. | 2 | Berks | Dem | 119 | 1911-12 |
| McGowan, Thomas F. | 1 | Philadelphia | Rep | 124 | 1921-22 |
| McGowan, Thomas F. | 1 | Philadelphia | Rep | 125 | 1923-24 |
| McGowan, Thomas F. | 1 | Philadelphia | Rep | 126 | 1925-26 |
| McGowan, William | 2 | Lancaster | Rep | 99 | 1875 |
| McGowan, William | 2 | Lancaster | Rep | 100 | 1876 |
| McGowan, William | 2 | Lancaster | Rep | 101 | 1877 |
| McGowan, William | 2 | Lancaster | Rep | 102 | 1878 |
| McGrail, Thomas A. | 2 | Westmoreland | Dem | 130 | 1933-34 |
| McGranahan, Lewis N. | | Mercer, Venango, Warren | Dem | 76 | 1852 |
| McGranahan, Lewis N. | | Mercer, Venango, Warren | Dem | 77 | 1853 |
| McGrath, John | 1 | Schuylkill | Dem | 134 | 1941-42 |
| McGraw, Andrew J. | 28 | Allegheny | Dem | 151-52 | 1967-68 |
| McGraw, Andrew J. | 44 | Allegheny | Dem | 153-54 | 1969-70 |
| McGraw, Andrew J. | 44 | Allegheny | Dem | 155-56 | 1971-72 |
| McGraw, Andrew J. | 44 | Allegheny | Dem | 157-58 | 1973-74 |
| McGraw, Andrew J. | 44 | Allegheny | Dem | 159-60 | 1975-76 |
| McGregor, W. C. | | Armstrong | Rep | 128 | 1929-30 |
| McGregor, W. C. | | Armstrong | Rep | 129 | 1931-32 |
| McGregor, W. C. | | Armstrong | Rep | 130 | 1933-34 |
| McHale, Katherine | 133 | Lehigh | Dem | 175-76 | 1991-92 |
| McHale, Paul | 133 | Lehigh | Dem | 167-68 | 1983-84 |
| McHale, Paul | 133 | Lehigh | Dem | 169-70 | 1985-86 |
| McHale, Paul | 133 | Lehigh | Dem | 171-72 | 1987-88 |
| McHale, Paul | 133 | Lehigh | Dem | 173-74 | 1989-90 |
| McHale, Paul | 133 | Lehigh | Dem | 175-76 | 1991-92 |
| McHenry, E. J. | | Columbia | Dem | 99 | 1875 |
| McHenry, E. J. | | Columbia | Dem | 100 | 1876 |
| McHenry, E. J. | | Columbia | Dem | 101 | 1877 |
| McHenry, E. J. | | Columbia | Dem | 102 | 1878 |
| McHenry, James | | Luzerne | Dem | 91 | 1867 |
| McHenry, James | | Luzerne | Dem | 92 | 1868 |
| McHenry, Oliver S. | | Columbia | Dem | 130 | 1933-34 |
| McHenry, Oliver S. | | Columbia | Dem | 131 | 1935-36 |
| McHugh, Connie | 184 | Philadelphia | Rep | 175-76 | 1991-92 |
| McHugh, William F. | 3 | Luzerne | Dem | 124 | 1921-22 |
| McIlhattan, Fred | 63 | Clarion | Rep | 181-82 | 1997-98 |
| McIlhattan, Fred | 63 | Clarion | Rep | 183-84 | 1999-00 |
| McIlhattan, Fred | 63 | Clarion | Rep | 185-86 | 2001-02 |
| McIlhattan, Fred | 63 | Clarion | Rep | 187-88 | 2003-04 |
| McIlhinney, Charles T., Jr. | 143 | Bucks | Rep | 181-82 | 1997-98 |
| McIlhinney, Charles T., Jr. | 143 | Bucks | Rep | 183-84 | 1999-00 |
| McIlhinney, Charles T., Jr. | 143 | Bucks | Rep | 185-86 | 2001-02 |
| McIlhinney, Charles T., Jr. | 143 | Bucks | Rep | 187-88 | 2003-04 |
| McIlvain, Abraham R. | | Chester | AM | 61 | 1836-37 |
| McIlvain, Abraham R. | | Chester | Whig | 62 | 1837-38 |
| McIlvain, Franklin | | Philadelphia | Dem | 81 | 1857 |
| McIlvaine, Joseph | | Philadelphia City | Whig | 61 | 1836-37 |
| McIlvaine, Joseph | | Philadelphia City | Whig | 62 | 1837-38 |
| McInerny, Charles A. | 2 | Allegheny | Rep | 119 | 1911-12 |
| McInroy, Harry R. | | Tioga | Rep | 139 | 1951-52 |
| McInroy, Harry R. | | Tioga | Rep | 140 | 1953-54 |
| McInroy, Harry R. | | Tioga | Rep | 141 | 1955-56 |
| McInroy, Harry R. | | Tioga | Rep | 142 | 1957-58 |
| McInroy, Harry R. | | Tioga | Rep | 143-4 | 1959-60 |
| McInroy, Harry R. | | Tioga | Rep | 145-6 | 1961-62 |
| McIntosh, Joseph J. | | Cumberland | Dem | 134 | 1941-42 |
| McIntyre, James | 178 | Philadelphia | Dem | 159-60 | 1975-76 |
| McIntyre, James | 178 | Philadelphia | Dem | 161-62 | 1977-78 |
| McIntyre, James | 178 | Philadelphia | Dem | 163-64 | 1979-80 |
| McIntyre, James | 178 | Philadelphia | Dem | 165-66 | 1981-82 |
| McIntyre, James M. | 180 | Philadelphia | Dem | 167-68 | 1983-84 |
| McIntyre, Russell B. | 2 | Fayette | Rep | 123 | 1919-20 |
| McIntyre, William | | Mercer | Dem | 117 | 1907-08 |
| McJunkin, Ira | | Butler | Rep | 117 | 1907-08 |
| McJunkin, Ira | | Butler | Rep | 118 | 1909-10 |
| McJunkin, Ira | | Butler | Rep | 119 | 1911-12 |
| McJunkin, J. D. | | Venango, Warren | Rep | 94 | 1870 |
| McJunkin, J. D. | | Venango, Warren | Rep | 95 | 1871 |
| McJunkin, J. D. | | Venango | Rep | 96 | 1872 |
| McJunkin, James T. | | Mercer, Lawrence, Butler | Rep | 92 | 1868 |
| McKay, James Clyde | | Crawford | Dem | 121 | 1915-16 |
| McKay, John | 6 | Luzerne | Key Fus | 120 | 1913-14 |
| McKay, John | 6 | Luzerne | Rep | 122 | 1917-18 |
| McKay, John | 6 | Luzerne | Rep | 123 | 1919-20 |
| McKay, Ray W. | | Mercer | Rep | 128 | 1929-30 |
| McKay, Ray W. | | Mercer | Rep | 129 | 1931-32 |
| McKay, Ray W. | | Mercer | Rep | 130 | 1933-34 |
| McKean, Addison | | Bradford | Dem | 75 | 1851 |
| McKean, Addison | | Bradford | Dem | 76 | 1852 |
| McKean, Arthur | | Beaver | Dem | 119 | 1911-12 |
| McKean, James A. | | McKean | Rep | 117 | 1907-08 |
| McKean, James A. | | McKean | Rep | 118 | 1909-10 |
| McKean, Samuel | | Bradford, Tioga | Rep | 40 | 1815-16 |
| McKean, Samuel | | Bradford, Tioga | Rep | 41 | 1816-17 |
| McKean, Samuel | | Bradford, Tioga | Rep | 42 | 1817-18 |
| McKean, Samuel | | Bradford, Tioga | Dem | 43 | 1818-19 |
| McKee, David | | Beaver, Butler, Washington | Rep | 97 | 1873 |
| McKee, David | | Beaver, Butler, Washington | Rep | 98 | 1874 |
| McKee, David J. | | Cumberland | Dem | 77 | 1853 |
| McKee, David J. | | Cumberland | Dem | 78 | 1854 |
| McKee, George Y. | | Allegheny | Union | 89 | 1865 |
| McKee, George Y. | | Allegheny | Union | 90 | 1866 |
| McKee, George Y. | | Allegheny | Rep | 91 | 1867 |
| McKee, Hugh | | Mifflin | Dem | 72 | 1848 |
| McKee, Hugh | | Mifflin | Dem | 73 | 1849 |
| McKee, I. D. | 15 | Philadelphia | Rep | 103 | 1879-80 |
| McKee, I. D. | 15 | Philadelphia | Rep | 104 | 1881-82 |
| McKee, J. W. | | Armstrong | Rep | 109 | 1891-92 |
| McKee, James | | Allegheny, Butler | Jack | 53 | 1828-29 |
| McKee, John | | Washington | Whig | 73 | 1849 |
| McKee, John W. | | Armstrong | Union | 89 | 1865 |
| McKee, Thomas | | Armstrong, Clarion, Jefferson | Dem | 75 | 1851 |
| McKeehan, Samuel | | Cumberland | Dem | 56 | 1831-32 |
| McKeehan, Samuel | | Cumberland | Dem | 57 | 1832-33 |
| McKeehan, Samuel | | Cumberland | Dem | 58 | 1833-34 |
| McKeever, Lee A. | 23 | Philadelphia | Dem | 141 | 1955-56 |
| McKeever, Lee A. | 23 | Philadelphia | Dem | 142 | 1957-58 |
| McKeever, Lee A. | 23 | Philadelphia | Dem | 143-4 | 1959-60 |
| McKeever, Lee A. | 23 | Philadelphia | Dem | 145-6 | 1961-62 |
| McKeever, Lee A. | 23 | Philadelphia | Dem | 147-8 | 1963-64 |
| McKelvey, Gerald J. | 176 | Philadelphia | Rep | 163-64 | 1979-80 |
| McKeon, Francis | | Schuylkill | Dem | 95 | 1871 |
| McKibben, David J. | 2 | Schuylkill | Dem | 101 | 1877 |
| McKibben, David J. | 2 | Schuylkill | Dem | 102 | 1878 |
| McKibben, Thomas | | Fayette | Rep | 39 | 1814-15 |
| McKibben, Thomas | | Fayette | Rep | 40 | 1815-16 |
| McKim, Samuel J. | 10 | Allegheny | Rep | 123 | 1919-20 |
| McKim, Samuel J. | 10 | Allegheny | Rep | 124 | 1921-22 |
| McKim, Samuel J. | 10 | Allegheny | Rep | 125 | 1923-24 |
| McKim, Samuel J. | 10 | Allegheny | Rep | 126 | 1925-26 |
| McKinley, Samuel | | Mercer, Lawrence, Butler | Union | 89 | 1865 |
| McKinley, Samuel | | Mercer, Lawrence, Butler | Union | 90 | 1866 |
| McKinley, Stephen | | York | Dem | 68 | 1844 |
| McKinley, Stephen | | York | Dem | 69 | 1845 |
| McKinney, Abraham | | Northumberland | Rep | 29 | 1804-05 |
| McKinney, Abraham | | Northumberland | Convent | 30 | 1805-06 |
| McKinney, Abraham | | Northumberland | Convent | 31 | 1806-07 |
| McKinney, Abraham | | Northumberland | Rep | 32 | 1807-08 |
| McKinney, Abraham | | Northumberland | Rep/Fed | 34 | 1809-10 |
| McKinney, Abraham | | Northumberland | Rep | 41 | 1816-17 |
| McKinney, Abraham Smith | | Cumberland | Dem | 64 | 1840 |
| McKinney, Abraham Smith | | Cumberland | Dem | 65 | 1841 |
| McKinney, Abram S. | | Cumberland | Dem | 47 | 1822-23 |
| McKinney, Abram S. | | Cumberland | Dem | 48 | 1823-24 |
| McKinney, Abram S. | | Cumberland | Dem | 49 | 1824-25 |
| McKinney, John H. | | Venango | Rep | 122 | 1917-18 |
| McKinney, John H. | | Venango | Rep | 130 | 1933-34 |
| McKinney, John H. | | Venango | Rep | 131 | 1935-36 |
| McKinney, John H. | | Venango | Rep | 132 | 1937-38 |
| McKinney, John H. | | Venango | Rep | 133 | 1939-40 |
| McKinney, John H. | | Venango | Rep | 134 | 1941-42 |
| McKinney, John H. | | Venango | Rep | 135 | 1943-44 |
| McKinney, John H. | | Venango | Rep | 136 | 1945-46 |
| McKinney, John H. | | Venango | Rep | 137 | 1947-48 |
| McKinney, John H. | | Venango | Rep | 138 | 1949-50 |
| McKinney, John H. | | Venango | Rep | 139 | 1951-52 |
| McKinnon, M. W. | | York | Dem | 67 | 1843 |
| McKinnon, Matthew J. | | York | Dem | 106 | 1885-86 |
| McKinnon, Matthew J. | | York | Dem | 108 | 1889-90 |
| McKinstry, Edward C. | | Bucks | Dem | 92 | 1868 |
| McKinstry, Edward C. | | Bucks | Dem | 93 | 1869 |
| McKinstry, Edward C. | | Bucks | Dem | 94 | 1870 |
| McKinstry, William | | Franklin | Dem | 63 | 1838-39 |
| McKinstry, William | | Franklin | Dem | 64 | 1840 |
| McKnight, Archie | 3 | Allegheny | Rep | 124 | 1921-22 |
| McKnight, William C. | | Indiana | Whig | 71 | 1847 |
| McKnight, William C. | | Indiana | Whig | 72 | 1848 |
| McLain, Joseph R. | | Washington | Rep | 101 | 1877 |
| McLain, Joseph R. | | Washington | Rep | 102 | 1878 |
| McLanahan, Robert J. | 2 | Beaver | Dem | 134 | 1941-42 |
| McLanahan, Robert J. | 2 | Beaver | Dem | 136 | 1945-46 |
| McLane, James J. | 3 | Luzerne | Dem | 133 | 1939-40 |
| McLane, James J. | 3 | Luzerne | Dem | 134 | 1941-42 |
| McLane, Labazure O. | | Crawford | Rep | 115 | 1903-04 |
| McLane, Labazure O. | | Crawford | Rep | 116 | 1905-06 |
| McLane, Labazure O. | | Crawford | Rep | 117 | 1907-08 |
| McLane, William J. | 112 | Lackawanna | Dem | 159-60 | 1975-76 |
| McLane, William J. | 112 | Lackawanna | Dem | 161-62 | 1977-78 |
| McLarn, J. H. | | Washington | Rep | 113 | 1899-00 |
| McLarn, J. H. | | Washington | Rep | 114 | 1901-02 |
| McLaughlin, John | | Union, Juniata | Whig | 73 | 1849 |
| McLaughlin, Joseph | 10 | Philadelphia | Rep | 126 | 1925-26 |
| McLaughlin, Leo J. | 5 | Allegheny | Dem | 141 | 1955-56 |
| McLaughlin, Leo J. | 5 | Allegheny | Dem | 142 | 1957-58 |
| McLaughlin, Leo J. | 5 | Allegheny | Dem | 143-4 | 1959-60 |
| McLaughlin, Leo J. | 5 | Allegheny | Dem | 145-6 | 1961-62 |
| McLaughlin, Leo J. | 5 | Allegheny | Dem | 147-8 | 1963-64 |
| McLean, John | | Franklin | Whig | 74 | 1850 |
| McLean, John | | Franklin | Whig | 75 | 1851 |
| McLean, Thompson | | Westmoreland | Dem | 99 | 1875 |
| McLean, Thompson | | Westmoreland | Dem | 100 | 1876 |
| McLene, James | | Franklin | Rep | 15 | 1790-91 |
| McLene, James | | Franklin | Rep | 18 | 1793-94 |
| McLeod, John | | Philadelphia | Rep | 35 | 1810-11 |
| McLeod, John | | Philadelphia | Rep | 36 | 1811-12 |
| McLeod, John | | Philadelphia | Rep | 37 | 1812-13 |
| McMakin, John | 6 | Philadelphia | Rep | 86 | 1862 |
| McMahon, John F. | | Luzerne | Rep | 94 | 1870 |
| McManus, Francis | 13 | Philadelphia | Dem | 86 | 1862 |
| McManus, Francis | 13 | Philadelphia | Dem | 87 | 1863 |
| McManus, Francis | 13 | Philadelphia | Dem | 88 | 1864 |
| McMaster, Robert C. | | Crawford | Dem | 110 | 1893-94 |
| McMasters, James | | Allegheny, Beaver, Butler | Rep | 27 | 1802-03 |
| McMasters, John | | Allegheny, Beaver, Butler | Rep | 26 | 1801-02 |
| McMeens, John | | Bradford, Lycoming, Potter, Tioga | Rep | 39 | 1814-15 |
| McMeens, John | | Lycoming, Potter, McKean | Rep | 42 | 1817-18 |
| McMeens, John | | Lycoming, Potter, McKean | Dem | 43 | 1818-19 |
| McMillan, Jacob R. | | Somerset | Rep | 97 | 1873 |
| McMillen, Jacob R. | | Somerset | Rep | 98 | 1874 |
| McMillan, James L. | 7 | Luzerne & Lackawanna | Rep | 105 | 1883-84 |
| McMillen, William R. | | Indiana | Rep | 134 | 1941-42 |
| McMillen, William R. | | Indiana | Rep | 135 | 1943-44 |
| McMillen, William R. | | Indiana | Rep | 136 | 1945-46 |
| McMillen, William R. | | Indiana | Rep | 137 | 1947-48 |
| McMillen, William R. | | Indiana | Rep | 138 | 1949-50 |
| McMillen, William R. | | Indiana | Rep | 139 | 1951-52 |
| McMiller, Henry | | Montgomery | Dem | 92 | 1868 |
| McMiller, Henry | | Montgomery | Dem | 93 | 1869 |
| McMinn, John | | Union, Juniata | Whig | 71 | 1847 |
| McMinn, John | | Union, Juniata | Whig | 72 | 1848 |
| McMinn, Joshua | | Chester | Dem-Bd+AM | 54 | 1829-30 |
| McMonagle, Gerald F. | 177 | Philadelphia | Dem | 163-64 | 1979-80 |
| McMonagle, Gerald F. | 177 | Philadelphia | Dem | 165-66 | 1981-82 |
| McMonagle, Gerald F. | 177 | Philadelphia | Dem | 167-68 | 1983-84 |
| McMonagle, John I. | 20 | Allegheny | Dem | 151-52 | 1967-68 |
| McMonagle, John I. | 36 | Allegheny | Dem | 153-54 | 1969-70 |
| McMonagle, John I. | 36 | Allegheny | Dem | 155-56 | 1971-72 |
| McMonagle, John I. | 36 | Allegheny | Dem | 157-58 | 1973-74 |
| McMonagle, John I. | 36 | Allegheny | Dem | 159-60 | 1975-76 |
| McMullen, James A. | 1 | Philadelphia | Rep | 107 | 1887-88 |
| McMullen, John T. | | Northumberland | Rep | 119 | 1911-12 |
| McMullen, John T. | | Northumberland | Rep | 124 | 1921-22 |
| McMullen, Thomas | | Indiana | Rep | 96 | 1872 |
| McMullin, Robert | | Philadelphia | Rep | 41 | 1816-17 |
| McMullin, Robert | | Philadelphia | Rep | 42 | 1817-18 |
| McMullin, Robert | | Philadelphia | Fed | 43 | 1818-19 |
| McMullin, Thomas | | Indiana, Westmoreland | Rep | 95 | 1871 |
| McMurtrie, David | | Huntingdon | Fed | 19 | 1794-95 |
| McMurtrie, David | | Huntingdon | Fed | 20 | 1795-96 |
| McMurtrie, R. A. | | Huntingdon, | Whig | 69 | 1845 |
| McMurtrie, R. A. | | Blair | Rep | 87 | 1863 |
| McMurtrie, R. A. | | Blair | Union | 88 | 1864 |
| McNair, Dunning | | Allegheny* | Fed | 19 | 1794-95 |
| McNair, Dunning | | Allegheny | Fed | 24 | 1799-1800 |
| McNair, John | | Bucks | Fed | 33 | 1808-09 |
| McNair, Solomon | | Bucks | Dem | 46 | 1821-22 |
| McNair, Solomon | | Bucks | Dem | 47 | 1822-23 |
| McNair, Solomon | | Bucks | Dem | 48 | 1823-24 |
| McNair, William N. | 4 | Allegheny | Dem | 136 | 1945-46 |
| McNally, Christopher K. | 36 | Allegheny | Dem | 175-76 | 1991-92 |
| McNally, Christopher K. | 36 | Allegheny | Dem | 177-78 | 1993-94 |
| McNally, Edward W. | 2 | Cambria | Dem | 145-6 | 1961-62 |
| McNally, Edward W. | 2 | Cambria | Dem | 147-8 | 1963-64 |
| McNally, Edward W. | 2 | Cambria | Dem | 149-50 | 1965-66 |
| McNally, Edward W. | 3 | Cambria | Dem | 151-52 | 1967-68 |
| McNally, Michael J. | 22 | Philadelphia | Rep | 133 | 1939-40 |
| McNally, Thomas V. | 8 | Allegheny | Dem | 136 | 1945-46 |
| McNally, Thomas V. | 8 | Allegheny | Dem | 138 | 1949-50 |
| McNally, Thomas V. | 8 | Allegheny | Dem | 139 | 1951-52 |
| McNamara, Robert C. | | Bedford | Dem | 105 | 1883-84 |
| McNaughton, Mark S. | 104 | Dauphin | Rep | 181-82 | 1997-98 |
| McNaughton, Mark S. | 104 | Dauphin | Rep | 183-84 | 1999-00 |
| McNaughton, Mark S. | 104 | Dauphin | Rep | 185-86 | 2001-02 |
| McNaughton, Mark S. | 104 | Dauphin | Rep | 187-88 | 2003-04 |
| McNeelis, Edward T. | | Cambria | Dem | 109 | 1891-92 |
| McNeely, James K. | | Greene | Dem | 115 | 1903-04 |
| McNeely, James K. | | Greene | Dem | 116 | 1905-06 |
| McNees, George W. | | Armstrong | Rep | 112 | 1897-98 |
| McNees, George W. | | Armstrong | Rep | 113 | 1899-00 |
| McNeill, William G. | 15 | Philadelphia | Rep | 106 | 1885-86 |
| McNichol, Thomas F. | 7 | Philadelphia | Rep | 119 | 1911-12 |
| McNichol, Thomas F. | 7 | Philadelphia | Rep | 120 | 1913-14 |
| McNichol, Thomas F. | 7 | Philadelphia | Rep | 121 | 1915-16 |
| McNichol, Thomas F. | 7 | Philadelphia | Rep | 122 | 1917-18 |
| McNite, W. P. | | Huntingdon | Dem | 99 | 1875 |
| McNite, W. P. | | Huntingdon | Dem | 100 | 1876 |
| McNulty, A. F. | 8 | Luzerne & Lackawanna | Dem | 104 | 1881-82 |
| McNutt, George | 26 | Philadelphia | Rep | 106 | 1885-86 |
| McOwen, Lawrence F. | 12 | Philadelphia | Rep | 124 | 1921-22 |
| McPeake, George C. | | Washington | Rep | 122 | 1917-18 |
| McPherrin, Josiah | | Mercer, Lawrence, Butler | Union | 90 | 1866 |
| McPherrin, Josiah | | Mercer, Lawrence, Butler | Rep | 91 | 1867 |
| McPherson, Donald P. | | Adams | Rep | 114 | 1901-02 |
| McPherson, William | | York | Fed | 15 | 1790-91 |
| McPherson, William | | York | Fed | 16 | 1791-92 |
| McPherson, William | | York | Fed | 17 | 1792-93 |
| McPherson, William | | York | Fed | 19 | 1794-95 |
| McPherson, William | | York | Fed | 20 | 1795-96 |
| McPherson, William | | York | Fed | 21 | 1796-97 |
| McPherson, William | | York | Fed | 22 | 1797-98 |
| McPherson, William | | York | Fed | 23 | 1798-99 |
| McPherson, William | | York | Fed | 24 | 1799-1800 |
| McQuaid, Thomas | | Westmoreland | Dem | 52 | 1827-28 |
| McQuaide, Thomas | | Westmoreland | Dem | 54 | 1829-30 |
| McQuown, Frank | 2 | Luzerne | Rep | 118 | 1909-10 |
| McReynolds, John | | Columbia | Dem | 49 | 1824-25 |
| McReynolds, John | | Columbia | Dem | 50 | 1825-26 |
| McReynolds, John | | Columbia | Dem | 51 | 1826-27 |
| McReynolds, John | | Columbia | Dem | 52 | 1827-28 |
| McReynolds, John | | Columbia | Jack | 53 | 1828-29 |
| McReynolds, John | | Columbia, Montour | Dem | 75 | 1851 |
| McShane, John J. | 26 | Philadelphia | Dem | 132 | 1937-38 |
| McSherry, James | | Adams | Const | 32 | 1807-08 |
| McSherry, James | | Adams | Fed | 33 | 1808-09 |
| McSherry, James | | Adams | Fed | 34 | 1809-10 |
| McSherry, James | | Adams | Fed | 35 | 1810-11 |
| McSherry, James | | Adams | Fed | 36 | 1811-12 |
| McSherry, James | | Adams | Fed | 37 | 1812-13 |
| McSherry, James | | Adams | Fed | 49 | 1824-25 |
| McSherry, James | | Adams | Fed | 50 | 1825-26 |
| McSherry, James | | Adams | Fed | 51 | 1826-27 |
| McSherry, James | | Adams | Adams | 53 | 1828-29 |
| McSherry, James | | Adams | Dem | 54 | 1829-30 |
| McSherry, James | | Adams | AM | 55 | 1830-31 |
| McSherry, James | | Adams | AM | 59 | 1834-35 |
| McSherry, James | | Adams | Dem | 60 | 1835-36 |
| McSherry, William | | Adams | Whig | 72 | 1848 |
| McSherry, William | | Adams | Whig | 75 | 1851 |
| McSurdy, Elmer F. | 2 | Schuylkill | Dem | 134 | 1941-42 |
| McSurdy, Elmer F. | 2 | Schuylkill | Rep* | 135 | 1943-44 |
| McTighe, John P. | 3 | Allegheny | Rep | 114 | 1901-02 |
| McTighe, John P. | | Chester | Rep | 117 | 1907-08 |
| McVay, Walter W. | 12 | Allegheny | Rep | 133 | 1939-40 |
| McVerry, Terence F. | 42 | Allegheny | Rep | 163-64 | 1979-80 |
| McVerry, Terence F. | 42 | Allegheny | Rep | 165-66 | 1981-82 |
| McVerry, Terence F. | 42 | Allegheny | Rep | 167-68 | 1983-84 |
| McVerry, Terence F. | 42 | Allegheny | Rep | 169-70 | 1985-86 |
| McVerry, Terence F. | 42 | Allegheny | Rep | 171-72 | 1987-88 |
| McVerry, Terence F. | 42 | Allegheny | Rep | 173-74 | 1989-90 |
| McVicar, Nelson | 12 | Allegheny | Rep | 121 | 1915-16 |
| McVicar, Nelson | 12 | Allegheny | Rep | 122 | 1917-18 |
| McVicar, Nelson | 12 | Allegheny | Rep | 123 | 1919-20 |
| McVicar, Nelson | 12 | Allegheny | Rep | 124 | 1921-22 |
| McVicar, Nelson | 13 | Allegheny | Rep | 125 | 1923-24 |
| McWherter, James L. | 1 | Westmoreland | Dem | 140 | 1953-54 |
| McWherter, James L. | 1 | Westmoreland | Dem | 141 | 1955-56 |
| McWhinney, Robert | 6 | Allegheny | Rep | 112 | 1897-98 |
| McWhinney, Robert | 6 | Allegheny | Rep | 113 | 1899-00 |
| McWhinney, Robert | 6 | Allegheny | Rep | 114 | 1901-02 |
| McWhinney, Robert | 6 | Allegheny | Rep | 115 | 1903-04 |
| McWhinney, Robert | 6 | Allegheny | Rep | 116 | 1905-06 |
| McWilliams, Jonathan | | Huntingdon | Whig | 67 | 1843 |
| McWilliams, Jonathan | | Huntingdon | Whig | 68 | 1844 |
| McWilliams, R. C. | | Northumberland | Dem | 105 | 1883-84 |
| McWilliams, Wallace | | Washington | Dem | 55 | 1830-31 |
| McWilliams, Wallace | | Washington | Dem | 56 | 1831-32 |
| McWilliams, Wallace | | Washington | Dem | 66 | 1842 |
| Meals, Ezra S. | 1 | Dauphin | Rep | 113 | 1899-00 |
| Meals, Ezra S. | 1 | Dauphin | Rep | 117 | 1907-08 |
| Mealy, Samuel | | Cumberland | Dem | 43 | 1818-19 |
| Means, Joseph | | Cumberland | Dem | 70 | 1846 |
| Means, Samuel W. | | Cumberland | Dem | 101 | 1877 |
| Means, Samuel W. | | Cumberland | Dem | 102 | 1878 |
| Meany, John J. | | Philadelphia | Dem | 77 | 1853 |
| Mearkle, William W. | 4 | Allegheny | Rep | 121 | 1915-16 |
| Mearkle, William W. | 4 | Allegheny | Rep | 122 | 1917-18 |
| Mebus, Charles F. | 3 | Montgomery | Rep | 149-50 | 1965-66 |
| Mebus, Charles F. | 9 | Montgomery | Rep | 151-52 | 1967-68 |
| Mebus, Charles F. | 154 | Montgomery | Rep | 153-54 | 1969-70 |
| Mebus, Charles F. | 154 | Montgomery | Rep | 155-56 | 1971-72 |
| Mebus, Charles F. | 154 | Montgomery | Rep | 157-58 | 1973-74 |
| Mebus, Charles F. | 154 | Montgomery | Rep | 159-60 | 1975-76 |
| Mebus, Charles F. | 154 | Montgomery | Rep | 161-62 | 1977-78 |
| Mechesney, A. H. | | Westmoreland | Rep | 108 | 1889-90 |
| Mechling, Allen R. | | Forest | Rep | 118 | 1909-10 |
| Mechling, Allen R. | | Forest | Rep | 120 | 1913-14 |
| Mechling, Frank | | Armstrong | Union | 90 | 1866 |
| Mechling, Frank | | Armstrong | Rep | 91 | 1867 |
| Mechling, Jacob | | Allegheny, Beaver, Butler | Rep | 29 | 1804-05 |
| Mechling, Jacob | | Allegheny, Beaver, Butler | Convent | 30 | 1805-06 |
| Mechling, Jacob | | Allegheny, Beaver, Butler | Convent | 31 | 1806-07 |
| Mechling, Jacob | | Allegheny, Beaver, Butler | Rep | 32 | 1807-08 |
| Mechling, Jacob | | Allegheny, Butler | Rep | 33 | 1808-09 |
| Mecleary, John | 18 | Philadelphia | Rep | 109 | 1891-92 |
| Medlam, John H., Jr. | 18 | Philadelphia | Rep | 106 | 1885-86 |
| Meek John B. | | Centre, Clearfield | Dem | 72 | 1848 |
| Meek John B. | | Centre, Clearfield | Dem | 73 | 1849 |
| Meek John B. | | Centre, Clearfield | Dem | 74 | 1850 |
| Meek, P. Gray | | Centre | Dem | 92 | 1868 |
| Meek, P. Gray | | Centre | Dem | 93 | 1869 |
| Meek, P. Gray | | Centre | Dem | 95 | 1871 |
| Meek, P. Gray | | Centre | Dem | 96 | 1872 |
| Megraw, R. H. | | Armstrong | Rep | 118 | 1909-10 |
| Meholchick, Stanley A. | 2 | Luzerne | Dem | 141 | 1955-56 |
| Meholchick, Stanley A. | 2 | Luzerne | Dem | 143-4 | 1959-60 |
| Meholchick, Stanley A. | 2 | Luzerne | Dem | 145-6 | 1961-62 |
| Meholchick, Stanley A. | 2 | Luzerne | Dem | 147-8 | 1963-64 |
| Meholchick, Stanley A. | 2 | Luzerne | Dem | 149-50 | 1965-66 |
| Meholchick, Stanley A. | 2 | Luzerne | Dem | 151-52 | 1967-68 |
| Meholchick, Stanley A. | 117 | Luzerne | Dem | 153-54 | 1969-70 |
| Meholchick, Stanley A. | 117 | Luzerne | Dem | 155-56 | 1971-72 |
| Mehring, John | 1 | Philadelphia | Rep | 123 | 1919-20 |
| Mehring, John | 1 | Philadelphia | Rep | 122 | 1917-18 |
| Meily, Jacob B. | | Lebanon | Union | 90 | 1866 |
| Meily, Jacob B. | | Lebanon | Rep | 91 | 1867 |
| Meily, John | | Lebanon | Whig | 78 | 1854 |
| Melchiorre, Charles | 5 | Philadelphia | Dem | 130 | 1933-34 |
| Melchiorre, Charles | 5 | Philadelphia | Dem | 131 | 1935-36 |
| Melchiorre, Charles | 5 | Philadelphia | Dem | 132 | 1937-38 |
| Melchiorre, Charles | 5 | Philadelphia | Dem | 133 | 1939-40 |
| Melchiorre, Charles | 5 | Philadelphia | Dem | 134 | 1941-42 |
| Melio, Anthony J. | 141 | Bucks | Dem | 171-72 | 1987-88 |
| Melio, Anthony J. | 141 | Bucks | Dem | 173-74 | 1989-90 |
| Melio, Anthony J. | 141 | Bucks | Dem | 175-76 | 1991-92 |
| Melio, Anthony J. | 141 | Bucks | Dem | 177-78 | 1993-94 |
| Melio, Anthony J. | 141 | Bucks | Dem | 179-80 | 1995-96 |
| Melio, Anthony J. | 141 | Bucks | Dem | 181-82 | 1997-98 |
| Melio, Anthony J. | 141 | Bucks | Dem | 183-84 | 1999-00 |
| Melio, Anthony J. | 141 | Bucks | Dem | 185-86 | 2001-02 |
| Melio, Anthony J. | 141 | Bucks | Dem | 187-88 | 2003-04 |
| Mellinger, David | | Adams | Whig | 76 | 1852 |
| Mellinger, David | | Adams | Whig | 77 | 1853 |
| Mellott, George B. | | Fulton | Dem | 120 | 1913-14 |
| Mellott, George B. | | Fulton | Dem | 121 | 1915-16 |
| Mellott, George B. | | Fulton | Dem | 132 | 1937-38 |
| Melloy John M. | | Philadelphia | Dem | 82 | 1858 |
| Meloy, John | | Washington | Whig | 69 | 1845 |
| Meloy, John | | Washington | Whig | 76 | 1852 |
| Melton, Mitchell W. | 196 | Philadelphia | Dem | 153-54 | 1969-70 |
| Melton, Mitchell W. | 196 | Philadelphia | Dem | 155-56 | 1971-72 |
| Meluski, Frank J. | 133 | Lehigh | Dem | 161-62 | 1977-78 |
| Memolo, Martin | 6 | Lackawanna | Rep | 126 | 1925-26 |
| Memolo, Martin | 6 | Lackawanna | Rep | 127 | 1927-28 |
| Memolo, Martin | 6 | Lackawanna | Rep | 128 | 1929-30 |
| Memolo, Martin | 6 | Lackawanna | Rep | 129 | 1931-32 |
| Mendenhall, William | | Delaware | Dem | 60 | 1835-36 |
| Mengel, Abraham | | Berks, Schuylkill | Dem | 44 | 1819-20 |
| Mengle, Jeremiah | | Berks | Dem | 79 | 1855 |
| Menhorn, Harry G. Jr. | 29 | Allegheny | Dem | 159-60 | 1975-76 |
| Menna, Louis | 5 | Philadelphia | Rep | 135 | 1943-44 |
| Menough, John | | Chester | Fed | 37 | 1812-13 |
| Menough, John | | Chester | Fed | 39 | 1814-15 |
| Menough, John | | Chester | Fed | 40 | 1815-16 |
| Menough, John | | Chester | Fed | 41 | 1816-17 |
| Menough, John | | Chester | Fed | 42 | 1817-18 |
| Mentzer, C. Fred | 3 | Westmoreland | Dem | 131 | 1935-36 |
| Mentzer, C. Fred | 3 | Westmoreland | Dem | 132 | 1937-38 |
| Meredith, Charles | | Bucks | Fed | 37 | 1812-13 |
| Meredith, J. Llewellyn, Jr. | 2 | Chester | Rep | 128 | 1929-30 |
| Meredith, J. Llewellyn, Jr. | 2 | Chester | Rep | 129 | 1931-32 |
| Meredith, J. Llewellyn, Jr. | 2 | Chester | Rep | 130 | 1933-34 |
| Meredith, Stephen M. | | Chester | Rep | 92 | 1868 |
| Meredith, Stephen M. | | Chester | Rep | 93 | 1869 |
| Meredith, William M. | | Philadelphia City | Fed | 49 | 1824-25 |
| Meredith, William M. | | Philadelphia City | Fed | 51 | 1826-27 |
| Meredith, William M. | | Philadelphia City | Fed | 52 | 1827-28 |
| Merrell, Albert F. | | Susquehanna | Rep | 130 | 1933-34 |
| Merrell, Albert F. | | Susquehanna | Rep | 131 | 1935-36 |
| Merrell, Albert F. | | Susquehanna | Rep | 132 | 1937-38 |
| Merrey, Joseph W. | | Clinton | Dem | 105 | 1883-84 |
| Merrick, Walter T. | | Tioga | Rep | 110 | 1893-94 |
| Merrick, Walter T. | | Tioga | Rep | 111 | 1895-96 |
| Merrifield, William | | Luzerne | Dem | 68 | 1844 |
| Merrifield, William | | Luzerne | Dem | 69 | 1845 |
| Merrifield, William | | Luzerne | Dem | 70 | 1846 |
| Merrill, Erwin | | Northampton | Dem | 107 | 1887-88 |
| Merriman, George | | Crawford | Dem | 76 | 1852 |
| Merriman, George | | Crawford | Dem | 77 | 1853 |
| Merry, James R. | 5 | Erie, Crawford | Rep | 165-66 | 1981-82 |
| Merry, James R. | 5 | Erie, Crawford | Rep | 167-68 | 1983-84 |
| Merry, James R. | 5 | Erie, Crawford | Rep | 169-70 | 1985-86 |
| Merry, James R. | 5 | Erie, Crawford | Rep | 171-72 | 1987-88 |
| Merry, James R. | 5 | Erie, Crawford | Rep | 173-74 | 1989-90 |
| Merry, James R. | 5 | Crawford | Rep | 175-76 | 1991-92 |
| Merry, James R. | 5 | Crawford | Rep | 177-78 | 1993-94 |
| Merry, James R. | 5 | Crawford | Rep | 179-80 | 1995-96 |
| Merry, Ralph S. | | Crawford | Rep | 142 | 1957-58 |
| Merry, Ralph S. | | Crawford | Rep | 143-4 | 1959-60 |
| Merry, Ralph S. | | Crawford | Rep | 145-6 | 1961-62 |
| Merry, Ralph S. | | Crawford | Rep | 147-8 | 1963-64 |
| Mertens, Charles A. | 1 | Erie | Rep | 114 | 1901-02 |
| Mertz, Henry, Jr. | | Lehigh | Rep | 41 | 1816-17 |
| Mervine, Wade H. | | Monroe | Dem | 122 | 1917-18 |
| Messenger, John C. | | Washington | Dem | 103 | 1879-80 |
| Mesta, Charles J. | 12 | Allegheny | Rep | 117 | 1907-08 |
| Metcalf, W. Howard | 2 | Delaware | Rep | 125 | 1923-24 |
| Metcalfe, Daryl D. | 12 | Butler | Rep | 183-84 | 1999-00 |
| Metcalfe, Daryl D. | 12 | Butler | Rep | 185-86 | 2001-02 |
| Metcalfe, Daryl D. | 12 | Butler | Rep | 187-88 | 2003-04 |
| Metz, August, Jr. | | Pike | Rep | 139 | 1951-52 |
| Metz, August, Jr. | | Pike | Rep | 140 | 1953-54 |
| Metz, August, Jr. | | Pike | Rep | 141 | 1955-56 |
| Metz, August, Jr. | | Pike | Rep | 142 | 1957-58 |
| Metzenbacher, William L. | | Crawford | Dem | 120 | 1913-14 |
| Metzenbacher, William L. | | Crawford | Dem | 121 | 1915-16 |
| Metzgar, John | | Bedford | Dem | 60 | 1835-36 |
| Metzger, George | | Cumberland | Rep | 38 | 1813-14 |
| Metzger, John | | Bedford | Whig | 68 | 1844 |
| Metzger, John | | Bedford | Whig | 69 | 1845 |
| Metzger, Maurice R. | 2 | Dauphin | Rep | 126 | 1925-26 |
| Metzger, Maurice R. | 2 | Dauphin | Rep | 127 | 1927-28 |
| Metzger, Owen G. | | Potter | Dem | 110 | 1893-94 |
| Metzier, George C. | 2 | Allegheny | Rep | 129 | 1931-32 |
| Metzier, George C. | 2 | Allegheny | Rep | 130 | 1933-34 |
| Metzinger, August C. | 12 | Philadelphia | Rep | 126 | 1925-26 |
| Metzinger, August C. | 12 | Philadelphia | Rep | 127 | 1927-28 |
| Metzinger, August C. | 12 | Philadelphia | Rep | 128 | 1929-30 |
| Metzinger, August C. | 12 | Philadelphia | Rep | 129 | 1931-32 |
| Metzler, Thomas | | York | Jack | 53 | 1828-29 |
| Mewhorter, Thomas | | Northampton | Rep | 15 | 1790-91 |
| Mewhorter, Thomas | | Northampton | Rep | 16 | 1791-92 |
| Mewhorter, Thomas | | Northampton | | 17 | 1792-93 |
| Mewhorter, Thomas | | Northampton, Wayne | Rep | 23 | 1798-99 |
| Meyer, Ezra | | Lebanon | Rep | 113 | 1899-00 |
| Meyer, Henry | | Centre | Dem | 105 | 1883-84 |
| Meyer, Isaac | | Lebanon | AM | 54 | 1829-30 |
| Meyer, J. Calvin | | Centre | Dem | 118 | 1909-10 |
| Meyer, J. Calvin | | Centre | Dem | 119 | 1911-12 |
| Meyer, Jacob G. | | Centre | Dem | 94 | 1870 |
| Meyers, B. F. | | Bedford | Dem | 88 | 1864 |
| Meyers, Emanuel J. | | Somerset | Rep | 101 | 1877 |
| Meyers, Emanuel J. | | Somerset | Rep | 102 | 1878 |
| Meyers, Henry S. | 18 | Philadelphia | Rep | 109 | 1891-92 |
| Meyers, Michael | | Northampton, Monroe | Dem | 74 | 1850 |
| Meyers, Michael | | Northampton | Dem | 76 | 1852 |
| Meyers, O. H. | | Northampton | Dem | 90 | 1866 |
| Meyers, O. H. | | Northampton | Dem | 91 | 1867 |
| Meylert, Michael | | Susquehanna, Sullivan, Wyoming | Dem | 76 | 1852 |
| Meytinger, Lewis | | Huntingdon | Fed | 28 | 1803-04 |
| Michel, Charles A. | 7 | Allegheny | Rep | 122 | 1917-18 |
| Michel, Charles A. | 7 | Allegheny | Rep | 123 | 1919-20 |
| Michel, Charles A. | 7 | Allegheny | Rep | 124 | 1921-22 |
| Michel, Charles A. | 7 | Allegheny | Rep | 128 | 1929-30 |
| Michlovic, Thomas A. | 35 | Allegheny | Dem | 163-64 | 1979-80 |
| Michlovic, Thomas A. | 35 | Allegheny | Dem | 165-66 | 1981-82 |
| Michlovic, Thomas A. | 35 | Allegheny | Dem | 167-68 | 1983-84 |
| Michlovic, Thomas A. | 35 | Allegheny | Dem | 169-70 | 1985-86 |
| Michlovic, Thomas A. | 35 | Allegheny | Dem | 171-72 | 1987-88 |
| Michlovic, Thomas A. | 35 | Allegheny | Dem | 173-74 | 1989-90 |
| Michlovic, Thomas A. | 35 | Allegheny | Dem | 175-76 | 1991-92 |
| Michlovic, Thomas A. | 35 | Allegheny | Dem | 177-78 | 1993-94 |
| Michlovic, Thomas A. | 35 | Allegheny | Dem | 179-80 | 1995-96 |
| Michlovic, Thomas A. | 35 | Allegheny | Dem | 181-82 | 1997-98 |
| Michlovic, Thomas A. | 35 | Allegheny | Dem | 183-84 | 1999-00 |
| Michlovic, Thomas A. | 35 | Allegheny | Dem | 185-86 | 2001-02 |
| Mickey, Quinn T. | | Cumberland | Rep | 117 | 1907-08 |
| Mickey, Quinn T. | | Cumberland | Rep | 118 | 1909-10 |
| Mickey, William A. | | Washington, Beaver, Butler | Rep | 95 | 1871 |
| Mickey, William A. | | Beaver, Butler, Washington | Rep | 96 | 1872 |
| Micozzie, Nicholas Anthony | 163 | Delaware | Rep | 163-64 | 1979-80 |
| Micozzie, Nicholas Anthony | 163 | Delaware | Rep | 165-66 | 1981-82 |
| Micozzie, Nicholas Anthony | 163 | Delaware | Rep | 167-68 | 1983-84 |
| Micozzie, Nicholas Anthony | 163 | Delaware | Rep | 169-70 | 1985-86 |
| Micozzie, Nicholas Anthony | 163 | Delaware | Rep | 171-72 | 1987-88 |
| Micozzie, Nicholas Anthony | 163 | Delaware | Rep | 173-74 | 1989-90 |
| Micozzie, Nicholas Anthony | 163 | Delaware | Rep | 175-76 | 1991-92 |
| Micozzie, Nicholas Anthony | 163 | Delaware | Rep | 177-78 | 1993-94 |
| Micozzie, Nicholas Anthony | 163 | Delaware | Rep | 179-80 | 1995-96 |
| Micozzie, Nicholas Anthony | 163 | Delaware | Rep | 181-82 | 1997-98 |
| Micozzie, Nicholas Anthony | 163 | Delaware | Rep | 183-84 | 1999-00 |
| Micozzie, Nicholas Anthony | 163 | Delaware | Rep | 185-86 | 2001-02 |
| Micozzie, Nicholas Anthony | 163 | Delaware | Rep | 187-88 | 2003-04 |
| Middlecoff, David | | Adams | Dem | 54 | 1829-30 |
| Middleswarth, Ner | | Union | Rep | 40 | 1815-16 |
| Middleswarth, Ner | | Union | Rep | 41 | 1816-17 |
| Middleswarth, Ner | | Union | Dem | 43 | 1818-19 |
| Middleswarth, Ner | | Union | Dem | 44 | 1819-20 |
| Middleswarth, Ner | | Union | Dem | 46 | 1821-22 |
| Middleswarth, Ner | | Union | Dem | 49 | 1824-25 |
| Middleswarth, Ner | | Union | Dem | 50 | 1825-26 |
| Middleswarth, Ner | | Union | Dem | 52 | 1827-28 |
| Middleswarth, Ner | | Union | Jack | 53 | 1828-29 |
| Middleswarth, Ner | | Union | AM | 54 | 1829-30 |
| Middleswarth, Ner | | Union | AM | 55 | 1830-31 |
| Middleswarth, Ner | | Union | AM | 59 | 1834-35 |
| Middleswarth, Ner | | Union | Dem | 60 | 1835-36 |
| Middleswarth, Ner | | Juniata, Mifflin, Union | Whig | 65 | 1841 |
| Mier, Samuel | | Somerset | Rep | 104 | 1881-82 |
| Mifflin, Edward B. | 3 | Delaware | Rep | 147-8 | 1963-64 |
| Mifflin, Edward B. | 3 | Delaware | Rep | 149-50 | 1965-66 |
| Mifflin, Edward B. | 3 | Delaware | Rep | 151-52 | 1967-68 |
| Mifflin, Edward B. | 161 | Delaware | Rep | 153-54 | 1969-70 |
| Mifflin, Edward B. | 161 | Delaware | Rep | 155-56 | 1971-72 |
| Mifflin, R. A. | | Butler | Rep | 101 | 1877 |
| Mifflin, R. A. | | Butler | Rep | 102 | 1878 |
| Mifflin, Thomas | | Philadelphia | Rep | 24 | 1799-1800 |
| Mihalich, Herman | 58 | Westmoreland | Dem | 175-76 | 1991-92 |
| Mihalich, Herman | 58 | Westmoreland | Dem | 177-78 | 1993-94 |
| Mihalich, Herman | 58 | Westmoreland | Dem | 179-80 | 1995-96 |
| Mihm, Martin C. | 7 | Allegheny | Dem | 132 | 1937-38 |
| Mihm, Martin C. | 7 | Allegheny | Dem | 133 | 1939-40 |
| Mihm, Martin C. | 7 | Allegheny | Dem | 134 | 1941-42 |
| Mihm, Martin C. | 7 | Allegheny | Dem | 135 | 1943-44 |
| Mihm, Martin C. | 7 | Allegheny | Dem | 136 | 1945-46 |
| Mihm, Martin C. | 7 | Allegheny | Dem | 137 | 1947-48 |
| Mihm, Martin C. | 7 | Allegheny | Dem | 138 | 1949-50 |
| Mihm, Martin C. | 7 | Allegheny | Dem | 139 | 1951-52 |
| Mihm, Martin C. | 7 | Allegheny | Dem | 140 | 1953-54 |
| Mihm, Martin C. | 11 | Allegheny | Dem | 141 | 1955-56 |
| Mihm, Martin C. | 11 | Allegheny | Dem | 142 | 1957-58 |
| Mihm, Martin C. | 11 | Allegheny | Dem | 143-4 | 1959-60 |
| Mihm, Martin C. | 11 | Allegheny | Dem | 145-6 | 1961-62 |
| Mikula, John J. | 1 | Luzerne | Rep | 136 | 1945-46 |
| Mikula, John J. | 1 | Luzerne | Rep | 137 | 1947-48 |
| Mikula, John J. | 1 | Luzerne | Rep | 138 | 1949-50 |
| Mikula, John J. | 1 | Luzerne | Rep | 139 | 1951-52 |
| Mikula, John J. | 1 | Luzerne | Rep | 140 | 1953-54 |
| Mikula, John J. | 1 | Luzerne | Rep | 141 | 1955-56 |
| Mikula, John J. | 1 | Luzerne | Rep | 142 | 1957-58 |
| Milanovich, Fred R. | 15 | Beaver | Dem | 159-60 | 1975-76 |
| Milanovich, Fred R. | 15 | Beaver | Dem | 161-62 | 1977-78 |
| Milanovich, Fred R. | 15 | Beaver | Dem | 163-64 | 1979-80 |
| Miles, John G. | | Huntingdon | Whig | 65 | 1841 |
| Miles, Samuel | | Montgomery | Quid | 30 | 1805-06 |
| Miley, Jacob | | Dauphin | Rep | 15 | 1790-91 |
| Miley, Jacob | | Dauphin | Rep | 16 | 1791-92 |
| Miley, Jacob | | Dauphin | Rep | 17 | 1792-93 |
| Millar, Albert | 1 | Dauphin | Rep | 123 | 1919-20 |
| Millar, Albert | 1 | Dauphin | Rep | 124 | 1921-22 |
| Millar, Albert S. C. | 23 | Philadelphia | Rep | 124 | 1921-22 |
| Millar, Albert S. C. | 23 | Philadelphia | Rep | 125 | 1923-24 |
| Millar, Albert S. C. | 23 | Philadelphia | Rep | 126 | 1925-26 |
| Millar, Albert S. C. | 23 | Philadelphia | Rep | 127 | 1927-28 |
| Millar, Albert S. C. | 23 | Philadelphia | Rep | 128 | 1929-30 |
| Millar, Albert S. C. | 24 | Philadelphia | Rep | 129 | 1931-32 |
| Millar, Alexander | | Allegheny | Rep | 94 | 1870 |
| Millar, Alexander | | Allegheny | Rep | 96 | 1872 |
| Millard, Humphrey J. | | Susquehanna | Rep | 110 | 1893-94 |
| Millard, Humphrey J. | | Susquehanna | Rep | 111 | 1895-96 |
| Miller, A. | | Northampton | Whig | 76 | 1852 |
| Miller, Abraham | | Philadelphia City | Fed | 52 | 1827-28 |
| Miller, Abraham | | Philadelphia City | Fed | 54 | 1829-30 |
| Miller, Abraham | | Philadelphia City | Nat Rep | 57 | 1832-33 |
| Miller, Abraham | | Philadelphia City | Nat Rep | 58 | 1833-34 |
| Miller, Abraham | | Philadelphia City | Nat Rep | 59 | 1834-35 |
| Miller, Adam | | Somerset | Fed | 23 | 1798-99 |
| Miller, Adam | | Somerset | Fed | 24 | 1799-1800 |
| Miller, Adam | | Somerset | Fed | 25 | 1800-01 |
| Miller, Adam | | Somerset | Fed | 26 | 1801-02 |
| Miller, Adam | | Somerset | Fed | 27 | 1802-03 |
| Miller, Alexander | | Lehigh | Opp | 59 | 1834-35 |
| Miller, Alexander | | Lehigh | Dem | 60 | 1835-36 |
| Miller, Alexander | | Allegheny | Rep | 92 | 1868 |
| Miller, Allan D. | | Susquehanna | Rep | 122 | 1917-18 |
| Miller, Allan D. | | Susquehanna | Rep | 123 | 1919-20 |
| Miller, Ananias David | 1 | Westmoreland | Rep | 122 | 1917-18 |
| Miller, B. Frank | | Northampton | Dem | 113 | 1899-00 |
| Miller, B. Frank | | Northampton | Dem | 114 | 1901-02 |
| Miller, Beatrice Z. | 15 | Philadelphia | Rep | 142 | 1957-58 |
| Miller, Beatrice Z. | 15 | Philadelphia | Rep | 143-4 | 1959-60 |
| Miller, Benjamin R. | | Philadelphia | Nat Amer | 76 | 1852 |
| Miller, Benjamin R. | | Philadelphia | Amer | 78 | 1854 |
| Miller, Charles | | Snyder | Rep | 101 | 1877 |
| Miller, Charles | | Snyder | Rep | 102 | 1878 |
| Miller, Charles | | Snyder | Rep | 103 | 1879-80 |
| Miller, Charles | | Snyder | Rep | 105 | 1883-84 |
| Miller, Charles A. | 1 | Dauphin | Rep | 106 | 1885-86 |
| Miller, Christian | 1 | Luzerne | Rep | 125 | 1923-24 |
| Miller, Christian | 1 | Luzerne | Rep | 126 | 1925-26 |
| Miller, Christian | 1 | Luzerne | Rep | 127 | 1927-28 |
| Miller, Clarence B. | 3 | Luzerne | Rep | 112 | 1897-98 |
| Miller, Conrad G. | 1 | Luzerne | Rep | 122 | 1917-18 |
| Miller, Conrad G. | 1 | Luzerne | Rep | 123 | 1919-20 |
| Miller, Conrad G. | 1 | Luzerne | Rep | 124 | 1921-22 |
| Miller, Daniel K. | | Philadelphia | Dem-B | 54 | 1829-30 |
| Miller, Daniel K. | | Philadelphia | Dem | 55 | 1830-31 |
| Miller, Daniel K. | | Philadelphia | Dem | 56 | 1831-32 |
| Miller, David I. | 1 | Dauphin | Rep | 123 | 1919-20 |
| Miller, David I. | 1 | Dauphin | Rep | 124 | 1921-22 |
| Miller, Donald D. | | Clearfield | Rep | 123 | 1919-20 |
| Miller, Donald D. | | Clearfield | Rep | 124 | 1921-22 |
| Miller, Edwin A. | 7 | Luzerne | Rep | 135 | 1943-44 |
| Miller, Ephraim D. | | Somerset | Rep | 109 | 1891-92 |
| Miller, Ephraim D. | | Somerset | Rep | 110 | 1893-94 |
| Miller, Ephraim D. | | Somerset | Rep | 111 | 1895-96 |
| Miller, George | | Lehigh | Dem | 51 | 1826-27 |
| Miller, George | | Lehigh | Dem | 52 | 1827-28 |
| Miller, George | | Lehigh | Jack | 53 | 1828-29 |
| Miller, George J. A. | 2 | Lehigh | Dem | 122 | 1917-18 |
| Miller, George W. | | Washington | Dem | 80 | 1856 |
| Miller, Harold G. | 1 | Blair | Rep | 136 | 1945-46 |
| Miller, Harold G. | 1 | Blair | Rep | 137 | 1947-48 |
| Miller, Harold G. | 1 | Blair | Rep | 138 | 1949-50 |
| Miller, Harold G. | 1 | Blair | Rep | 139 | 1951-52 |
| Miller, Harold G. | 1 | Blair | Rep | 141 | 1955-56 |
| Miller, Harold G. | 1 | Blair | Rep | 142 | 1957-58 |
| Miller, Harold G. | 1 | Blair | Rep | 143-4 | 1959-60 |
| Miller, Harold G. | 1 | Blair | Rep | 145-6 | 1961-62 |
| Miller, Harry E. | 8 | Philadelphia | Rep | 140 | 1953-54 |
| Miller, Henry | | Lancaster | Fed | 51 | 1826-27 |
| Miller, Henry A. | 2 | Northampton | Rep | 126 | 1925-26 |
| Miller, Henry A. | 2 | Northampton | Rep | 127 | 1927-28 |
| Miller, Henry A. | 2 | Northampton | Rep | 128 | 1929-30 |
| Miller, Henry F. | 2 | Delaware | Rep | 124 | 1921-22 |
| Miller, I. Newton | | Erie | Rep | 95 | 1871 |
| Miller, J. Henry | | Lebanon | Rep | 101 | 1877 |
| Miller, J. Henry | | Lebanon | Rep | 102 | 1878 |
| Miller, Jacob | 1 | Berks | Dem | 99 | 1875 |
| Miller, Jacob | 1 | Berks | Dem | 100 | 1876 |
| Miller, Jacob | 1 | Berks | Dem | 101 | 1877 |
| Miller, Jacob | 1 | Berks | Dem | 102 | 1878 |
| Miller, Jacob B. | | Fayette | Opp | 59 | 1834-35 |
| Miller, James | 17 | Philadelphia | Union | 88 | 1864 |
| Miller, James | 18 | Philadelphia | Union | 89 | 1865 |
| Miller, James | 18 | Philadelphia | Rep | 94 | 1870 |
| Miller, James | 18 | Philadelphia | Rep | 95 | 1871 |
| Miller, Jeremiah J. | 19 | Philadelphia | Rep | 124 | 1921-22 |
| Miller, Jesse | | Perry | Dem | 51 | 1826-27 |
| Miller, Jesse | | Perry | Dem | 52 | 1827-28 |
| Miller, John | | Lancaster | Fed | 26 | 1801-02 |
| Miller, John | | Berks, Schuylkill | Rep | 37 | 1812-13 |
| Miller, John | | Berks, Schuylkill | Rep | 39 | 1814-15 |
| Miller, John | | Northumberland, | Fed | 43 | 1818-19 |
| Miller, John | | Allegheny | Whig | 74 | 1850 |
| Miller, John | | Allegheny | Whig | 76 | 1852 |
| Miller, John C. | 2 | Beaver | Rep | 139 | 1951-52 |
| Miller, John S. | | Huntingdon, Mifflin, Juniata | Dem | 92 | 1868 |
| Miller, Joseph D. | | Somerset | Rep | 99 | 1875 |
| Miller, Joseph D. | | Somerset | Rep | 100 | 1876 |
| Miller, Joshua S. | | Berks | Dem | 84 | 1860 |
| Miller, Josiah | | Bedford | Dem | 72 | 1848 |
| Miller, Josiah | | Bedford | Dem | 73 | 1849 |
| Miller, Marvin E. | 2 | Lancaster | Rep | 151-52 | 1967-68 |
| Miller, Marvin E. | 97 | Lancaster | Rep | 153-54 | 1969-70 |
| Miller, Marvin E. | 97 | Lancaster | Rep | 155-56 | 1971-72 |
| Miller, Marvin E. | 97 | Lancaster | Rep | 157-58 | 1973-74 |
| Miller, Marvin E. | 97 | Lancaster | Rep | 159-60 | 1975-76 |
| Miller, Marvin E., Jr. | 96 | Lancaster | Rep | 157-58 | 1973-74 |
| Miller, Marvin E., Jr. | 96 | Lancaster | Rep | 159-60 | 1975-76 |
| Miller, Marvin E., Jr. | 96 | Lancaster | Rep | 161-62 | 1977-78 |
| Miller, Marvin E., Jr. | 96 | Lancaster | Rep | 163-64 | 1979-80 |
| Miller, Marvin E., Jr. | 96 | Lancaster | Rep | 165-66 | 1981-82 |
| Miller, Marvin E., Jr. | 96 | Lancaster | Rep | 167-68 | 1983-84 |
| Miller, Marvin E., Jr. | 96 | Lancaster | Rep | 169-70 | 1985-86 |
| Miller, Marvin E., Jr. | 96 | Lancaster | Rep | 171-72 | 1987-88 |
| Miller, Marvin E., Jr. | 96 | Lancaster | Rep | 173-74 | 1989-90 |
| Miller, Noah S. | | Somerset | Rep | 107 | 1887-88 |
| Miller, Noah S. | | Somerset | Rep | 108 | 1889-90 |
| Miller, Paul W. | 4 | Allegheny | Dem | 151-52 | 1967-68 |
| Miller, Paul W. | 20 | Allegheny | Dem | 153-54 | 1969-70 |
| Miller, Peter | | Montgomery | Dem | 44 | 1819-20 |
| Miller, Peter | | Montgomery | Dem | 45 | 1820-21 |
| Miller, Peter | | Montgomery | Dem | 46 | 1821-22 |
| Miller, Peter | | Montgomery | Dem | 47 | 1822-23 |
| Miller, Robert | | Chester | Fed | 51 | 1826-27 |
| Miller, Robert | | Chester | Fed | 52 | 1827-28 |
| Miller, Robert | | Chester | Adams | 53 | 1828-29 |
| Miller, Robert C. | 2 | Montgomery | Rep | 118 | 1909-10 |
| Miller, Robert C. | 2 | Montgomery | Rep | 119 | 1911-12 |
| Miller, Robert P. | | Crawford, Warren | Rep | 82 | 1858 |
| Miller, Robert P. | | Crawford, Warren | Rep | 83 | 1859 |
| Miller, Ronald E. | 93 | York | Rep | 183-84 | 1999-00 |
| Miller, Ronald E. | 93 | York | Rep | 185-86 | 2001-02 |
| Miller, Ronald E. | 93 | York | Rep | 187-88 | 2003-04 |
| Miller, Samuel H. | 2 | Dauphin | Rep | 128 | 1929-30 |
| Miller, Samuel H. | 2 | Dauphin | Rep | 129 | 1931-32 |
| Miller, Sheila | 129 | Berks | Rep | 177-78 | 1993-94 |
| Miller, Sheila | 129 | Berks | Rep | 179-80 | 1995-96 |
| Miller, Sheila | 129 | Berks | Rep | 181-82 | 1997-98 |
| Miller, Sheila | 129 | Berks | Rep | 183-84 | 1999-00 |
| Miller, Sheila | 129 | Berks | Rep | 185-86 | 2001-02 |
| Miller, Sheila | 129 | Berks | Rep | 187-88 | 2003-04 |
| Miller, Theodore F. | 6 | Philadelphia | Dem | 99 | 1875 |
| Miller, Theodore F. | 6 | Philadelphia | Dem | 100 | 1876 |
| Miller, Thomas R. | | Erie | AM | 61 | 1836-37 |
| Miller, Vincent | | Allegheny | Rep | 93 | 1869 |
| Miller, Vincent | 6 | Allegheny | Rep | 101 | 1877 |
| Miller, Vincent | 6 | Allegheny | Rep | 102 | 1878 |
| Miller, Warren K. | 1 | Lehigh | Rep | 120 | 1913-14 |
| Miller, Wendell H. | | Butler | Rep | 142 | 1957-58 |
| Miller, William | | York | Fed | 20 | 1795-96 |
| Miller, William | | York | Fed | 21 | 1796-97 |
| Miller, William | | Adams | Fed | 27 | 1802-03 |
| Miller, William | | Adams | Fed | 28 | 1803-04 |
| Miller, William | | Adams | Fed | 29 | 1804-05 |
| Miller, William | | Adams | Fed | 38 | 1813-14 |
| Miller, William | | Adams | Fed | 39 | 1814-15 |
| Miller, William | | Adams | Fed | 40 | 1815-16 |
| Miller, William | | Adams | Fed | 44 | 1819-20 |
| Miller, William C. | | Bedford | Rep | 113 | 1899-00 |
| Miller, William C. | | Bedford | Rep | 114 | 1901-02 |
| Miller, William H. | | Mercer | Rep | 110 | 1893-94 |
| Miller, William H. | | Somerset | Rep | 112 | 1897-98 |
| Millham, James | | Wayne | Rep | 104 | 1881-82 |
| Milliken, David B. | | Perry, Franklin | Dem | 94 | 1870 |
| Milliken, David B. | | Perry, Franklin | Dem | 95 | 1871 |
| Milliken, James | | Mifflin | Rep | 38 | 1813-14 |
| Milliken, James | | Mifflin | Rep | 39 | 1814-15 |
| Milliken, James | | Mifflin | Rep | 40 | 1815-16 |
| Milliken, John D. | | Juniata | Dem | 104 | 1881-82 |
| Milliken, Thomas O. | | Huntingdon | Rep | 111 | 1895-96 |
| Milliken, Thomas O. | | Huntingdon | Rep | 113 | 1899-00 |
| Milliken, William H., Jr. | 2 | Delaware | Rep | 136 | 1945-46 |
| Milliken, William H., Jr. | 2 | Delaware | Rep | 138 | 1949-50 |
| Milliken, William H., Jr. | 2 | Delaware | Rep | 135 | 1943-44 |
| Millin, Thomas T. | | Jefferson | Rep | 123 | 1919-20 |
| Milliron, Ira A. | | Venango | Rep | 117 | 1907-08 |
| Milliron, Ira A. | | Venango | Rep | 118 | 1909-10 |
| Milliron, John P. | 79 | Blair | Dem | 159-60 | 1975-76 |
| Milliron, John P. | 79 | Blair | Dem | 161-62 | 1977-78 |
| Milliron, Miles A. | | Armstrong | Rep | 121 | 1915-16 |
| Milliron, Miles A. | | Armstrong | Rep | 122 | 1917-18 |
| Mills, Charles E. | | Bradford | Rep | 118 | 1909-10 |
| Mills, Charles E. | | Bradford | Rep | 119 | 1911-12 |
| Mills, Charles J. | 3 | Westmoreland | Dem | 136 | 1945-46 |
| Mills, Charles J. | 3 | Westmoreland | Dem | 137 | 1947-48 |
| Mills, Charles J. | 3 | Westmoreland | Dem | 138 | 1949-50 |
| Mills, Charles J. | 3 | Westmoreland | Dem | 139 | 1951-52 |
| Mills, Charles J. | 3 | Westmoreland | Dem | 140 | 1953-54 |
| Mills, Charles J. | 3 | Westmoreland | Dem | 141 | 1955-56 |
| Mills, Charles J. | 3 | Westmoreland | Dem | 142 | 1957-58 |
| Mills, Charles J. | 3 | Westmoreland | Dem | 143-4 | 1959-60 |
| Mills, Charles J. | 3 | Westmoreland | Dem | 145-6 | 1961-62 |
| Mills, Charles J. | 3 | Westmoreland | Dem | 147-8 | 1963-64 |
| Mills, Charles J. | 4 | Westmoreland | Dem | 149-50 | 1965-66 |
| Milner, Byron A. | 5 | Philadelphia | Rep | 122 | 1917-18 |
| Milner, Byron A. | 5 | Philadelphia | Rep | 123 | 1919-20 |
| Milnor, William | | Bucks | Rep | 28 | 1803-04 |
| Milnor, William | | Bucks | Rep | 29 | 1804-05 |
| Milnor, William | | Bucks | Quid | 30 | 1805-06 |
| Minehart, Charles D. | | Franklin | Dem | 125 | 1923-24 |
| Minehart, Thomas Z. | | Franklin | Dem | 117 | 1907-08 |
| Miner, Asher | 7 | Luzerne | Rep | 117 | 1907-08 |
| Miner, Charles | | Luzerne | Const | 32 | 1807-08 |
| Miner, Charles | | Luzerne | Fed | 33 | 1808-09 |
| Miner, Charles | | Luzerne | Fed | 37 | 1812-13 |
| Miner, Charles A. | 1 | Luzerne | Rep | 99 | 1875 |
| Miner, Charles A. | 1 | Luzerne | Rep | 100 | 1876 |
| Miner, Charles A. | 1 | Luzerne | Rep | 101 | 1877 |
| Miner, Charles A. | 1 | Luzerne | Rep | 102 | 1878 |
| Miner, Charles A. | 1 | Luzerne & Lackawanna | Rep | 103 | 1879-80 |
| Minor, John | | Washington | Rep | 15 | 1790-91 |
| Minor, John | | Washington | | 16 | 1791-92 |
| Minor, John | | Washington | Rep | 18 | 1793-94 |
| Minor, John | | Washington | Rep | 20 | 1795-96 |
| Mintess, Lewis M. | 6 | Philadelphia | Rep | 135 | 1943-44 |
| Mintess, Lewis M. | 6 | Philadelphia | Rep | 137 | 1947-48 |
| Mintess, Lewis M. | 6 | Philadelphia | Rep | 138 | 1949-50 |
| Mintess, Lewis M. | 6 | Philadelphia | Rep | 139 | 1951-52 |
| Mintzer, George W., Sr. | 1 | Philadelphia | Rep | 116 | 1905-06 |
| Miscevich, George | 39 | Allegheny | Dem | 159-60 | 1975-76 |
| Miscevich, George | 39 | Allegheny | Dem | 161-62 | 1977-78 |
| Miscevich, George | 39 | Allegheny | Dem | 165-66 | 1981-82 |
| Miscevich, George | 39 | Allegheny | Dem | 167-68 | 1983-84 |
| Missimer, Albert | 20 | Philadelphia | Rep | 118 | 1909-10 |
| Missimer, Albert | 20 | Philadelphia | Rep | 120 | 1913-14 |
| Missimer, John | | Berks | Dem | 88 | 1864 |
| Missimer, John | | Berks | Dem | 89 | 1865 |
| Missimer, John | | Berks | Dem | 90 | 1866 |
| Missimer, Samuel D. | 1 | Berks | Dem | 108 | 1889-90 |
| Missimer, Samuel D. | 1 | Berks | Dem | 109 | 1891-92 |
| Mitchel, David | | Cumberland | Rep | 15 | 1790-91 |
| Mitchel, David | | Cumberland | Rep | 18 | 1793-94 |
| Mitchel, David | | Cumberland | Rep | 19 | 1794-95 |
| Mitchel, David | | Cumberland | Rep | 20 | 1795-96 |
| Mitchel, David | | Cumberland | Rep | 21 | 1796-97 |
| Mitchel, David | | Cumberland | Rep | 24 | 1799-1800 |
| Mitchel, David | | Cumberland | Rep | 25 | 1800-01 |
| Mitchel, David | | Cumberland | Rep | 26 | 1801-02 |
| Mitchel, David | | Cumberland | Rep | 27 | 1802-03 |
| Mitchel, David | | Cumberland | Rep | 28 | 1803-04 |
| Mitchel, David | | Cumberland | Rep | 29 | 1804-05 |
| Mitchel, Jacob | | Philadelphia City | Rep | 29 | 1804-05 |
| Mitchel, Jacob | | Philadelphia City | Rep | 33 | 1808-09 |
| Mitchel, Jacob | | Philadelphia City | Rep | 37 | 1812-13 |
| Mitchel, Jacob | | Philadelphia City | Rep | 38 | 1813-14 |
| Mitchel, Robert | | Jefferson, Clarion, Venango | Dem | 70 | 1846 |
| Mitchell, Arthur W. | 1 | Erie | Rep | 120 | 1913-14 |
| Mitchell, B. B. | | Bradford | Rep | 105 | 1883-84 |
| Mitchell, David | | Lebanon | AM | 56 | 1831-32 |
| Mitchell, David | | Lebanon | AM | 57 | 1832-33 |
| Mitchell, David | | Lebanon | AM | 58 | 1833-34 |
| Mitchell, George V. | | Juniata, Mifflin | Dem | 96 | 1872 |
| Mitchell, James | | Cambria, Somerset | Rep | 38 | 1813-14 |
| Mitchell, James | 1 | Philadelphia | Rep | 103 | 1879-80 |
| Mitchell, James | 1 | Philadelphia | Rep | 104 | 1881-82 |
| Mitchell, James G. | | Jefferson | Rep | 118 | 1909-10 |
| Mitchell, James S. | | York | Rep | 35 | 1810-11 |
| Mitchell, James S. | | York | Rep | 36 | 1811-12 |
| Mitchell, James S. | | York | Rep | 37 | 1812-13 |
| Mitchell, James S. | | York | Rep | 38 | 1813-14 |
| Mitchell, James S. | | York | Rep | 39 | 1814-15 |
| Mitchell, James W. | | Mifflin | Rep | 124 | 1921-22 |
| Mitchell, John | | Centre, Clearfield | Dem | 47 | 1822-23 |
| Mitchell, John | | Centre, Clearfield | Dem | 48 | 1823-24 |
| Mitchell, John I. | | Tioga | Rep | 96 | 1872 |
| Mitchell, John I. | | Tioga | Rep | 97 | 1873 |
| Mitchell, John I. | | Tioga | Rep | 98 | 1874 |
| Mitchell, John I. | | Tioga | Rep | 99 | 1875 |
| Mitchell, John I. | | Tioga | Rep | 100 | 1876 |
| Mitchell, Joseph | 4 | Allegheny | Rep | 101 | 1877 |
| Mitchell, Joseph | 4 | Allegheny | Rep | 102 | 1878 |
| Mitchell, Lex N. | | Jefferson | Rep | 122 | 1917-18 |
| Mitchell, Robert | | Armstrong, Indiana, Jefferson | Dem | 44 | 1819-20 |
| Mitchell, Robert | | Armstrong, Indiana, Jefferson | Dem | 45 | 1820-21 |
| Mitchell, Robert | | Armstrong, Indiana, Jefferson | Dem | 46 | 1821-22 |
| Mitchell, Robert | | Armstrong, Indiana, Jefferson | Dem | 52 | 1827-28 |
| Mitchell, Robert | | Indiana, Jefferson | | 54 | 1829-30 |
| Mitchell, Stanley N. | | Susquehanna | Rep | 105 | 1883-84 |
| Mitchell, William | | Bucks | Rep | 34 | 1809-10 |
| Mitchell, William | | Bucks | Rep | 35 | 1810-11 |
| Mitchell, William | | Bucks | Rep | 36 | 1811-12 |
| Mock, John | 5 | Luzerne | Rep | 135 | 1943-44 |
| Modell, Herman M. | 22 | Philadelphia | Dem | 134 | 1941-42 |
| Modell, Herman M. | 22 | Philadelphia | Dem | 135 | 1943-44 |
| Modell, Herman M. | 22 | Philadelphia | Dem | 136 | 1945-46 |
| Moehlmann, Nicholas B. | 102 | Lebanon | Rep | 159-60 | 1975-76 |
| Moehlmann, Nicholas B. | 102 | Lebanon | Rep | 161-62 | 1977-78 |
| Moehlmann, Nicholas B. | 102 | Lebanon | Rep | 163-64 | 1979-80 |
| Moehlmann, Nicholas B. | 102 | Lebanon | Rep | 165-66 | 1981-82 |
| Moehlmann, Nicholas B. | 102 | Lebanon | Rep | 167-68 | 1983-84 |
| Moehlmann, Nicholas B. | 102 | Lebanon | Rep | 169-70 | 1985-86 |
| Moehlmann, Nicholas B. | 102 | Lebanon | Rep | 171-72 | 1987-88 |
| Moehlmann, Nicholas B. | 102 | Lebanon | Rep | 173-74 | 1989-90 |
| Moffatt, William J. | 1 | Lawrence | Rep | 125 | 1923-24 |
| Moffatt, William J. | 1 | Lawrence | Rep | 126 | 1925-26 |
| Mohler, John | | Lancaster | Rep | 26 | 1801-02 |
| Mohler, John | | Lancaster | Rep | 27 | 1802-03 |
| Mohler, Samuel | | Lancaster | Dem | 52 | 1827-28 |
| Mohn, Chester A. | 2 | Berks | Rep | 130 | 1933-34 |
| Mohn, George C. | | Union | Rep | 115 | 1903-04 |
| Mohn, George C. | | Union | Rep | 116 | 1905-06 |
| Mohr, Louis, Jr. | 24 | Philadelphia | Rep | 137 | 1947-48 |
| Mohr, W. Frank | 1 | Berks | Rep | 115 | 1903-04 |
| Mohr, W. Frank | 1 | Berks | Rep | 116 | 1905-06 |
| Molineaux, William S. | 1 | Philadelphia | Rep | 104 | 1881-82 |
| Molineaux, William S. | 1 | Philadelphia | Rep | 105 | 1883-84 |
| Molineaux, William S. | 1 | Philadelphia | Rep | 106 | 1885-86 |
| Molloy, Joseph C. | | Philadelphia | Dem | 74 | 1850 |
| Monaghan, Charles J. | 2 | Schuylkill | Dem | 118 | 1909-10 |
| Monaghan, James J. | 4 | Philadelphia | Dem | 99 | 1875 |
| Monaghan, James J. | 4 | Philadelphia | Dem | 100 | 1876 |
| Monaghan, James J. | 4 | Philadelphia | Dem | 101 | 1877 |
| Monaghan, James J. | 4 | Philadelphia | Dem | 102 | 1878 |
| Monaghan, Robert E. | | Chester | Dem | 78 | 1854 |
| Mong, John | | Clarion | Dem | 112 | 1897-98 |
| Monks, Raphael I. | 10 | Philadelphia | Dem | 134 | 1941-42 |
| Monroe, Augustus J. | | Tioga | Whig | 75 | 1851 |
| Monroe, Susie | 23 | Philadelphia | Dem | 138 | 1949-50 |
| Monroe, Susie | 23 | Philadelphia | Dem | 139 | 1951-52 |
| Monroe, Susie | 23 | Philadelphia | Dem | 140 | 1953-54 |
| Monroe, Susie | 11 | Philadelphia | Dem | 141 | 1955-56 |
| Monroe, Susie | 11 | Philadelphia | Dem | 142 | 1957-58 |
| Monroe, Susie | 11 | Philadelphia | Dem | 143-4 | 1959-60 |
| Monroe, Susie | 11 | Philadelphia | Dem | 145-6 | 1961-62 |
| Monroe, Susie | 11 | Philadelphia | Dem | 147-8 | 1963-64 |
| Monroe, Susie | 13 | Philadelphia | Dem | 149-50 | 1965-66 |
| Monroe, Susie | 28 | Philadelphia | Dem | 151-52 | 1967-68 |
| Montelius, John | | Union | Dem | 60 | 1835-36 |
| Montelius, John | | Juniata, Mifflin, Union | Whig | 63 | 1838-39 |
| Montelius, William | | Philadelphia City | Whig | 71 | 1847 |
| Montgomery, Daniel, Jr. | | Northumberland | Rep | 27 | 1802-03 |
| Montgomery, David B. | | Northumberland | Dem | 66 | 1842 |
| Montgomery, David B. | | Northumberland | Dem | 78 | 1854 |
| Montgomery, Edwin | 15 | Philadelphia | Rep | 99 | 1875 |
| Montgomery, Edwin | 15 | Philadelphia | Rep | 100 | 1876 |
| Montgomery, James | | Westmoreland | Rep | 25 | 1800-01 |
| Montgomery, James | | Westmoreland | Rep | 26 | 1801-02 |
| Montgomery, James | | Westmoreland, Armstrong | Rep | 27 | 1802-03 |
| Montgomery, James | | Westmoreland | Rep | 33 | 1808-09 |
| Montgomery, James | | Mercer, Venango | Rep | 34 | 1809-10 |
| Montgomery, James | | Mercer, Venango | Rep | 35 | 1810-11 |
| Montgomery, James | | Mercer, Venango | Rep | 36 | 1811-12 |
| Montgomery, James | | Westmoreland | Rep | 36 | 1811-12 |
| Montgomery, James | | Mercer, Venango | Rep | 37 | 1812-13 |
| Montgomery, James | | Mercer | Whig | 65 | 1841 |
| Montgomery, John | | Cumberland | Rep | 15 | 1790-91 |
| Montgomery, John | | Cumberland | Rep | 16 | 1791-92 |
| Montgomery, John | | Cumberland | Rep | 18 | 1793-94 |
| Montgomery, John | | Cumberland | Rep | 19 | 1794-95 |
| Montgomery, John G. | | Columbia, Montour | Dem | 80 | 1856 |
| Montgomery, John W. | 9 | Allegheny | Rep | 133 | 1939-40 |
| Montgomery, Robert | | Northumberland | Dem | 94 | 1870 |
| Montgomery, Robert | | Northumberland | Dem | 95 | 1871 |
| Montgomery, Thomas W. | | Huntingdon | Rep | 114 | 1901-02 |
| Montgomery, Thomas W. | | Huntingdon | Rep | 115 | 1903-04 |
| Montgomery, W. R. | | Mercer | Rep | 104 | 1881-82 |
| Montgomery, William S. | | Lycoming | Dem | 118 | 1909-10 |
| Moody, John H. | 2 | Dauphin | Rep | 140 | 1953-54 |
| Moody, John H. | 2 | Dauphin | Rep | 141 | 1955-56 |
| Moody, John H. | 2 | Dauphin | Rep | 142 | 1957-58 |
| Moomaw, Paul C. | | Franklin | Dem | 131 | 1935-36 |
| Moomaw, Paul C. | | Franklin | Dem | 132 | 1937-38 |
| Mooney, John F. | 6 | Philadelphia | Rep | 94 | 1870 |
| Mooney, John F. | 6 | Philadelphia | Dem | 95 | 1871 |
| Mooney, Thomas | 8 | Luzerne & Lackawanna | Nat Green | 103 | 1879-80 |
| Mooney, Thomas P. | 2 | Allegheny | Dem | 131 | 1935-36 |
| Mooney, Thomas P. | 2 | Allegheny | Dem | 132 | 1937-38 |
| Mooney, Thomas P. | 2 | Allegheny | Dem | 133 | 1939-40 |
| Mooney, Thomas P. | 2 | Allegheny | Dem | 134 | 1941-42 |
| Mooney, Thomas P. | 2 | Allegheny | Dem | 135 | 1943-44 |
| Mooney, Thomas P. | 2 | Allegheny | Dem | 136 | 1945-46 |
| Mooney, Thomas P. | 2 | Allegheny | Dem | 137 | 1947-48 |
| Moore, Alexander P. | | Mercer, Lawrence, Butler | Rep | 95 | 1871 |
| Moore, Alexander P. | | Lawrence | Rep | 96 | 1872 |
| Moore, Alonzo R. | | Potter | Rep | 115 | 1903-04 |
| Moore, Arthur | | Huntingdon | Rep | 29 | 1804-05 |
| Moore, Arthur | | Huntingdon | Convent | 30 | 1805-06 |
| Moore, Arthur | | Huntingdon | Convent | 31 | 1806-07 |
| Moore, Arthur | | Huntingdon | Rep | 32 | 1807-08 |
| Moore, Arthur | | Huntingdon | Rep | 33 | 1808-09 |
| Moore, Charles | | Montgomery | Rep | 108 | 1889-90 |
| Moore, Clarence E. | | Clinton | Rep | 135 | 1943-44 |
| Moore, Clarence E. | | Clinton | Rep | 136 | 1945-46 |
| Moore, Clarence E. | | Clinton | Rep | 137 | 1947-48 |
| Moore, Clarence E. | | Clinton | Rep | 138 | 1949-50 |
| Moore, Clarence E. | | Clinton | Rep | 139 | 1951-52 |
| Moore, Clarence E. | | Clinton | Rep | 140 | 1953-54 |
| Moore, D. Glenn | 1 | Washington | Rep | 126 | 1925-26 |
| Moore, D. Glenn | 1 | Washington | Rep | 127 | 1927-28 |
| Moore, D. Glenn | 1 | Washington | Rep | 128 | 1929-30 |
| Moore, D. Glenn | 1 | Washington | Rep | 129 | 1931-32 |
| Moore, Daniel F. | | Chester | Rep | 110 | 1893-94 |
| Moore, Daniel F. | | Chester | Rep | 111 | 1895-96 |
| Moore, Daniel F. | | Chester | Rep | 112 | 1897-98 |
| Moore, Ebenezer | | Westmoreland | Dem | 68 | 1844 |
| Moore, Frank E. | 62 | Indiana | Rep | 153-54 | 1969-70 |
| Moore, Frank N. | | Bradford | Rep | 110 | 1893-94 |
| Moore, Frank N. | | Bradford | Rep | 111 | 1895-96 |
| Moore, Frank N. | | Bradford | Rep | 127 | 1927-28 |
| Moore, Franklin R. | 1 | Philadelphia | Rep | 119 | 1911-12 |
| Moore, Franklin R. | 1 | Philadelphia | Rep | 120 | 1913-14 |
| Moore, George | | Erie, Crawford, Mercer, Venango, Warren | Fed | 46 | 1821-22 |
| Moore, George | | Erie, Warren | Fed | 47 | 1822-23 |
| Moore, George | | Erie, Warren | Adams | 53 | 1828-29 |
| Moore, George | | Erie | | 54 | 1829-30 |
| Moore, George W. | 4 | Allegheny | Rep | 106 | 1885-86 |
| Moore, George W. | 4 | Allegheny | Rep | 107 | 1887-88 |
| Moore, Harry | 4 | Allegheny | Rep | 104 | 1881-82 |
| Moore, Harvey A. | | Butler | Rep | 137 | 1947-48 |
| Moore, Harvey A. | | Butler | Rep | 138 | 1949-50 |
| Moore, Harvey A. | | Butler | Rep | 139 | 1951-52 |
| Moore, Henry C. | | Bucks | Dem | 101 | 1877 |
| Moore, Henry C. | | Bucks | Dem | 102 | 1878 |
| Moore, Henry C. | | Bucks | Dem | 103 | 1879-80 |
| Moore, Isaac W. | | Philadelphia | Dem | 77 | 1853 |
| Moore, Isaac W. | | Philadelphia | Dem | 78 | 1854 |
| Moore, James N. | | Butler | Rep | 111 | 1895-96 |
| Moore, James N. | | Butler | Rep | 112 | 1897-98 |
| Moore, James N. | | Butler | Rep | 113 | 1899-00 |
| Moore, Jesse | | Northumberland | Rep | 26 | 1801-02 |
| Moore, Jesse | | Northumberland | Rep | 27 | 1802-03 |
| Moore, Jesse | | Huntingdon | Whig | 66 | 1842 |
| Moore, John | | Bedford | Rep | 18 | 1793-94 |
| Moore, John | | Bedford | Rep | 19 | 1794-95 |
| Moore, John | | Bedford | Rep | 22 | 1797-98 |
| Moore, John | | Bedford | Rep | 25 | 1800-01 |
| Moore, John | | Bedford | Rep | 26 | 1801-02 |
| Moore, John | | Bucks | Fed | 46 | 1821-22 |
| Moore, John | | Bucks | Fed | 48 | 1823-24 |
| Moore, John P. | 6 | Allegheny | Rep | 114 | 1901-02 |
| Moore, John P. | 6 | Allegheny | Rep | 115 | 1903-04 |
| Moore, John P. | 6 | Allegheny | Rep | 116 | 1905-06 |
| Moore, John P. | 12 | Allegheny | Rep | 117 | 1907-08 |
| Moore, Joseph, Jr. | 5 | Philadelphia | Rep | 84 | 1860 |
| Moore, Joseph, Jr. | 5 | Philadelphia | Rep | 85 | 1861 |
| Moore, Joseph, Jr. | 5 | Philadelphia | Rep | 86 | 1862 |
| Moore, Joseph, Jr. | 5 | Philadelphia | Rep | 87 | 1863 |
| Moore, Linus W. | | Susquehanna | Rep | 111 | 1895-96 |
| Moore, Linus W. | | Susquehanna | Rep | 112 | 1897-98 |
| Moore, Maxwell J. | | McKean | Dem | 125 | 1923-24 |
| Moore, Robert | | Beaver | Dem | 54 | 1829-30 |
| Moore, Robert H. | 10 | Philadelphia | Rep | 130 | 1933-34 |
| Moore, Robert H. | 10 | Philadelphia | Rep | 131 | 1935-36 |
| Moore, Robert J. | 4 | Philadelphia | Rep | 110 | 1893-94 |
| Moore, Samuel | | Berks | Dem | 65 | 1841 |
| Moore, Samuel | | Berks | Dem | 66 | 1842 |
| Moore, Samuel | | Berks | Dem | 67 | 1843 |
| Moore, W. H. | | Jefferson | Rep | 128 | 1929-30 |
| Moore, W. H. | | Jefferson | Rep | 129 | 1931-32 |
| Moore, William J. | 3 | Luzerne | Dem | 136 | 1945-46 |
| Moore, William J. | 86 | Perry | Rep | 155-56 | 1971-72 |
| Moore, Ziba T. | 15 | Philadelphia | Rep | 112 | 1897-98 |
| Moore, Ziba T. | 21 | Philadelphia | Rep | 115 | 1903-04 |
| Moorhead, James | | Westmoreland | Dem | 56 | 1831-32 |
| Moorhead, James | | Westmoreland | Dem | 58 | 1833-34 |
| Moorhead, Robert B. | | Indiana | Opp | 80 | 1856 |
| Moorhead, Robert B. | | Indiana | Opp | 81 | 1857 |
| Morahan, John J. | 5 | Luzerne | Dem | 112 | 1897-98 |
| Moran, Cyril J. | 1 | Lackawanna | Dem | 147-8 | 1963-64 |
| Moran, Cyril J. | 1 | Lackawanna | Dem | 149-50 | 1965-66 |
| Moran, J. P. | 10 | Allegheny | Dem | 131 | 1935-36 |
| Moran, J. P. | 10 | Allegheny | Dem | 132 | 1937-38 |
| Moran, J. P. | 10 | Allegheny | Dem | 133 | 1939-40 |
| Moran, J. P. | 10 | Allegheny | Dem | 134 | 1941-42 |
| Moran, J. P. | 10 | Allegheny | Dem | 135 | 1943-44 |
| Moran, J. P. | 10 | Allegheny | Dem | 136 | 1945-46 |
| Moran, J. P. | 10 | Allegheny | Dem | 138 | 1949-50 |
| Moran, J. P. | 10 | Allegheny | Dem | 139 | 1951-52 |
| Moran, J. P. | 10 | Allegheny | Dem | 140 | 1953-54 |
| Moran, J. P. | 16 | Allegheny | Dem | 141 | 1955-56 |
| Moran, J. P. | 16 | Allegheny | Dem | 143-4 | 1959-60 |
| Morford, Nathan | | Mercer | Rep | 96 | 1872 |
| Morford, Nathan | | Mercer | Rep | 97 | 1873 |
| Morgan, Alexander H. | 15 | Philadelphia | Rep | 105 | 1883-84 |
| Morgan, Benjamin R. | | Philadelphia City | Fed | 16 | 1791-92 |
| Morgan, Benjamin R. | | Philadelphia City | Fed | 17 | 1792-93 |
| Morgan, Benjamin R. | | Philadelphia City | Fed | 18 | 1793-94 |
| Morgan, Benjamin R. | | Philadelphia City | Fed | 19 | 1794-95 |
| Morgan, Benjamin R. | | Philadelphia City | Fed | 20 | 1795-96 |
| Morgan, Benjamin R. | | Philadelphia City | Fed | 35 | 1810-11 |
| Morgan, Benjamin R. | | Philadelphia City | Fed | 36 | 1811-12 |
| Morgan, Benjamin R. | | Philadelphia City | Fed | 39 | 1814-15 |
| Morgan, Benjamin R. | | Philadelphia City | Fed | 54 | 1829-30 |
| Morgan, E. S. N. | | Lawrence | Rep | 98 | 1874 |
| Morgan, E. S. N. | | Lawrence | Rep | 99 | 1875 |
| Morgan, E. S. N. | | Lawrence | Rep | 100 | 1876 |
| Morgan, E. S. N. | | Lawrence | Rep | 101 | 1877 |
| Morgan, E. S. N. | | Lawrence | Rep | 102 | 1878 |
| Morgan, George | 15 | Philadelphia | Dem | 105 | 1883-84 |
| Morgan, George | 15 | Philadelphia | Dem | 106 | 1885-86 |
| Morgan, George F. | | Allegheny | Rep | 93 | 1869 |
| Morgan, Jacob | | Philadelphia | Rep | 18 | 1793-94 |
| Morgan, Jacob | | Philadelphia | Rep | 19 | 1794-95 |
| Morgan, John | | Chester | Dem | 64 | 1840 |
| Morgan, John | | Fayette | Dem | 67 | 1843 |
| Morgan, John | | Fayette | Dem | 68 | 1844 |
| Morgan, John | | Fayette | Dem | 69 | 1845 |
| Morgan, John W. | | Schuylkill | Rep | 98 | 1874 |
| Morgan, John W. | 1 | Schuylkill | Rep | 99 | 1875 |
| Morgan, John W. | 1 | Schuylkill | Rep | 100 | 1876 |
| Morgan, John W. | 1 | Schuylkill | Rep | 101 | 1877 |
| Morgan, John W. | 1 | Schuylkill | Rep | 102 | 1878 |
| Morgan, Theodore | | Mercer | Rep | 122 | 1917-18 |
| Morgan, Thomas | | Washington | Rep | 39 | 1814-15 |
| Morgan, Thomas | | Washington | Rep | 40 | 1815-16 |
| Morgan, Thomas J. | 4 | Luzerne | Rep | 122 | 1917-18 |
| Morgan, Thomas J. | 4 | Luzerne | Rep | 123 | 1919-20 |
| Morgan, William S. | | Somerset | Rep | 105 | 1883-84 |
| Morgan, William S. | | Somerset | Rep | 106 | 1885-86 |
| Morgan,(Moyer?)John | | Chester | Jack | 53 | 1828-29 |
| Morison, George | | Lancaster | Whig | 70 | 1846 |
| Morison, George | | Lancaster | Whig | 71 | 1847 |
| Morley, Thomas | | Susquehanna, Wyoming | Dem | 69 | 1845 |
| Morley, Walter H. | 15 | Philadelphia | Dem | 145-6 | 1961-62 |
| Morley, Walter H. | 15 | Philadelphia | Dem | 147-8 | 1963-64 |
| Morley, Walter H. | 24 | Philadelphia | Dem | 149-50 | 1965-66 |
| Morris, Benjamin | | Philadelphia City | Fed | 41 | 1816-17 |
| Morris, Charles J. | 2 | Luzerne | Dem | 124 | 1921-22 |
| Morris, E. Joy | | Philadelphia City | Whig | 66 | 1842 |
| Morris, E. Joy | | Philadelphia City | Whig | 67 | 1843 |
| Morris, E. Joy | | Philadelphia City | Opp | 80 | 1856 |
| Morris, John C. | | Susquehanna | Nat Green | 103 | 1879-80 |
| Morris, John D. | | Northampton, Monroe | Dem | 74 | 1850 |
| Morris, John D. | | Monroe, Pike | Dem | 75 | 1851 |
| Morris, John F. L. | 14 | Philadelphia | Rep | 118 | 1909-10 |
| Morris, John F. L. | 14 | Philadelphia | Rep | 119 | 1911-12 |
| Morris, Oliver G. | | Montgomery | Dem | 95 | 1871 |
| Morris, Oliver G. | | Montgomery | Dem | 96 | 1872 |
| Morris, Oliver G. | | Montgomery | Dem | 97 | 1873 |
| Morris, Samuel W. | | Bradford, Tioga | Dem | 57 | 1832-33 |
| Morris, Samuel W. | | Bradford, Tioga | Dem | 58 | 1833-34 |
| Morris, Samuel W. | | Bradford, Tioga | Dem | 59 | 1834-35 |
| Morris, Samuel W. | 155 | Chester | Dem | 155-56 | 1971-72 |
| Morris, Samuel W. | 155 | Chester | Dem | 157-58 | 1973-74 |
| Morris, Samuel W. | 155 | Chester | Dem | 159-60 | 1975-76 |
| Morris, Samuel W. | 155 | Chester | Dem | 161-62 | 1977-78 |
| Morris, Samuel W. | 155 | Chester | Dem | 165-66 | 1981-82 |
| Morris, Samuel W. | 155 | Chester | Dem | 167-68 | 1983-84 |
| Morris, Samuel W. | 155 | Chester | Dem | 169-70 | 1985-86 |
| Morris, Samuel W. | 155 | Chester | Dem | 171-72 | 1987-88 |
| Morris, Samuel W. | 155 | Chester | Dem | 173-74 | 1989-90 |
| Morris, Thomas G. | 28 | Philadelphia | Rep | 115 | 1903-04 |
| Morris, Thomas G. | 28 | Philadelphia | Rep | 116 | 1905-06 |
| Morris, Thomas W. | | Philadelphia City | Fed | 54 | 1829-30 |
| Morris, William R. | | Philadelphia City | Whig/Amer | 79 | 1855 |
| Morrison, Daniel | | Lancaster | Fed | 43 | 1818-19 |
| Morrison, Daniel | | Lancaster | Fed | 44 | 1819-20 |
| Morrison, E. | | Mifflin | Whig/Amer | 79 | 1855 |
| Morrison, Ellis | | Lawrence | Rep | 104 | 1881-82 |
| Morrison, Ellis | | Lawrence | Rep | 105 | 1883-84 |
| Morrison, J. Howard | 23 | Philadelphia | Rep | 109 | 1891-92 |
| Morrison, James | | Lancaster | Fed | 16 | 1791-92 |
| Morrison, James | | Lancaster | Fed | 17 | 1792-93 |
| Morrison, James | | Lancaster | Fed | 18 | 1793-94 |
| Morrison, James | | Lancaster | Fed | 20 | 1795-96 |
| Morrison, John | | Huntingdon | Whig | 62 | 1837-38 |
| Morrison, John | | Huntingdon | Whig | 63 | 1838-39 |
| Morrison, John | | Huntingdon | Whig | 64 | 1840 |
| Morrison, John W. | 5 | Allegheny | Rep | 104 | 1881-82 |
| Morrison, John W. | 5 | Allegheny | Rep | 105 | 1883-84 |
| Morrison, John W. | 1 | Berks | Dem | 117 | 1907-08 |
| Morrison, Joseph S. | | Bedford | Rep | 38 | 1813-14 |
| Morrison, Joseph S. | | Bedford | Rep | 39 | 1814-15 |
| Morrison, Levi | | Mercer | Rep | 105 | 1883-84 |
| Morrison, Levi | | Mercer | Rep | 113 | 1899-00 |
| Morrison, Levi | | Mercer | Rep | 114 | 1901-02 |
| Morrison, Neil E. | 1 | Berks | Rep | 137 | 1947-48 |
| Morrison, Samuel | | Lancaster | Fed | 47 | 1822-23 |
| Morrison, Samuel | | Lancaster | Fed | 49 | 1824-25 |
| Morrison, William D. | 13 | Philadelphia | Dem | 84 | 1860 |
| Morrison, William D. | 13 | Philadelphia | Dem | 85 | 1861 |
| Morrison, William F. | | Westmoreland | Rep | 115 | 1903-04 |
| Morrison, William F. | | Westmoreland | Rep | 116 | 1905-06 |
| Morrison, William J. | | Montgomery | Dem | 74 | 1850 |
| Morrison, William L. | 1 | Erie | Rep | 125 | 1923-24 |
| Morrison, William L. | 1 | Erie | Rep | 126 | 1925-26 |
| Morrison, William P. | | Lawrence | Rep | 108 | 1889-90 |
| Morrison, William P. | | Lawrence | Rep | 109 | 1891-92 |
| Morrison, William S. | | Beaver | Rep | 118 | 1909-10 |
| Morrison, William T. | | Montgomery | Dem | 73 | 1849 |
| Morrow, Alexander | 2 | Lehigh | Rep | 120 | 1913-14 |
| Morrow, John W. | | Indiana | Rep | 109 | 1891-92 |
| Morrow, John W. | | Indiana | Rep | 112 | 1897-98 |
| Morrow, John W. | | Indiana | Rep | 113 | 1899-00 |
| Morrow, Matthew M. | | Blair | Rep | 112 | 1897-98 |
| Morrow, O. P. | | Venango | Rep | 107 | 1887-88 |
| Morrow, O. P. | | Venango | Rep | 108 | 1889-90 |
| Morse, Willard D. | | Bradford | Rep | 116 | 1905-06 |
| Mortimer, William | | Schuylkill | Dem | 63 | 1838-39 |
| Morton, George | | Philadelphia | Rep | 37 | 1812-13 |
| Morton, George | | Philadelphia | Rep | 39 | 1814-15 |
| Morton, George | | Philadelphia | Rep | 40 | 1815-16 |
| Morton, Sketchly | | Delaware | Whig | 71 | 1847 |
| Morton, Sketchly | | Delaware | Whig | 72 | 1848 |
| Morton, Thomas | | Allegheny | Rep | 16 | 1791-92 |
| Morton, Thomas | | Allegheny | Rep | 17 | 1792-93 |
| Morton, Thomas | | Allegheny | Rep | 25 | 1800-01 |
| Morton, William | | Beaver | AM | 61 | 1836-37 |
| Morton, William | | Beaver | Whig | 62 | 1837-38 |
| Morton, William | | Beaver | Whig | 63 | 1838-39 |
| Morton, William | | Beaver | Whig | 64 | 1840 |
| Moscrip, Andrew S. | | Bradford | Rep | 140 | 1953-54 |
| Moscrip, Andrew S. | | Bradford | Rep | 141 | 1955-56 |
| Moscrip, Andrew S. | | Bradford | Rep | 142 | 1957-58 |
| Moscrip, Andrew S. | 110 | Bradford | Rep | 153-54 | 1969-70 |
| Moscrip, Andrew S. | 110 | Bradford | Rep | 155-56 | 1971-72 |
| Moscrip, George | | Bradford | Rep | 99 | 1875 |
| Moscrip, George | | Bradford | Rep | 100 | 1876 |
| Moscrip, George | | Bradford | Rep | 117 | 1907-08 |
| Moscrip, George | | Bradford | Rep | 118 | 1909-10 |
| Moser, Frank S. | 2 | Northumberland | Rep | 133 | 1939-40 |
| Moser, Henry G. | | Cumberland | Dem | 78 | 1854 |
| Moser, Jacob L. | 1 | Lehigh | Rep | 133 | 1939-40 |
| Moser, Jacob L. | 1 | Lehigh | Rep | 135 | 1943-44 |
| Moser, Jacob L. | 1 | Lehigh | Rep | 136 | 1945-46 |
| Moses, George W. | 1 | Cambria | Rep | 119 | 1911-12 |
| Moses, George W. | 1 | Cambria | Rep | 120 | 1913-14 |
| Moses, Howard K. | 2 | Chester | Rep | 127 | 1927-28 |
| Mosher, Jeremiah | | Lancaster | Fed | 40 | 1815-16 |
| Mosher, Jeremiah | | Lancaster | Fed | 43 | 1818-19 |
| Mosteller, John | | Somerset, Cambria | Dem | 45 | 1820-21 |
| Mott, Henry S. | | Monroe, Pike | Dem | 76 | 1852 |
| Mott, Henry S. | | Monroe, Pike | Dem | 77 | 1853 |
| Mott, Milton D. | | Pike | Dem | 106 | 1885-86 |
| Mott, Milton D. | | Pike | Dem | 107 | 1887-88 |
| Moul, Clayton E. | 2 | York | Dem | 131 | 1935-36 |
| Moul, Clayton E. | 2 | York | Dem | 132 | 1937-38 |
| Moul, Clayton E. | 2 | York | Dem | 134 | 1941-42 |
| Moulthrop, Alonzo S. | | Clearfield | Rep | 117 | 1907-08 |
| Moulthrop, Alonzo S. | | Clearfield | Rep | 118 | 1909-10 |
| Moulthrop, Alonzo S. | | Clearfield | Rep | 119 | 1911-12 |
| Moulthrop, Alonzo S. | | Clearfield | Rep | 120 | 1913-14 |
| Mowery, Harold F., Jr. | 87 | Cumberland | Rep | 161-62 | 1977-78 |
| Mowery, Harold F., Jr. | 87 | Cumberland | Rep | 163-64 | 1979-80 |
| Mowery, Harold F., Jr. | 87 | Cumberland | Rep | 165-66 | 1981-82 |
| Mowery, Harold F., Jr. | 87 | Cumberland | Rep | 167-68 | 1983-84 |
| Mowery, Harold F., Jr. | 87 | Cumberland | Rep | 169-70 | 1985-86 |
| Mowery, Harold F., Jr. | 87 | Cumberland | Rep | 171-72 | 1987-88 |
| Mowery, Harold F., Jr. | 87 | Cumberland | Rep | 173-74 | 1989-90 |
| Mowrey, Ezekiel | | Susquehanna, Wyoming | Dem | 74 | 1850 |
| Mowrey, Ezekiel | | Susquehanna, Sullivan, Wyoming | Dem | 75 | 1851 |
| Mowry, George | | Somerset, Cambria | AM | 61 | 1836-37 |
| Mowry, George | | Somerset | Whig | 75 | 1851 |
| Mowry, George | | Somerset | Whig | 76 | 1852 |
| Moyer, Gabriel H. | | Lebanon | Rep | 116 | 1905-06 |
| Moyer, Gabriel H. | | Lebanon | Rep | 117 | 1907-08 |
| Moyer, Gabriel H. | | Lebanon | Rep | 118 | 1909-10 |
| Moyer, Jonas F. | | Lehigh | Dem | 113 | 1899-00 |
| Moyer, Jonas F. | | Lehigh | Dem | 114 | 1901-02 |
| Moyer, Jonas F. | | Lehigh | Dem | 115 | 1903-04 |
| Moyer, Russel S. | 2 | Northampton | Rep | 142 | 1957-58 |
| Moyles, Thomas M. | 6 | Luzerne | Dem | 109 | 1891-92 |
| Moyles, Thomas M. | 6 | Luzerne | Dem | 110 | 1893-94 |
| Mrkonic, Emil | 37 | Allegheny | Dem | 159-60 | 1975-76 |
| Mrkonic, Emil | 37 | Allegheny | Dem | 161-62 | 1977-78 |
| Mrkonic, Emil | 37 | Allegheny | Dem | 163-64 | 1979-80 |
| Mrkonic, Emil | 37 | Allegheny | Dem | 165-66 | 1981-82 |
| Mrkonic, Emil | 37 | Allegheny | Dem | 167-68 | 1983-84 |
| Mrkonic, Emil | 37 | Allegheny | Dem | 169-70 | 1985-86 |
| Mrkonic, Emil | 37 | Allegheny | Dem | 171-72 | 1987-88 |
| Mrkonic, Emil | 37 | Allegheny | Dem | 173-74 | 1989-90 |
| Mrkonic, Emil | 37 | Allegheny | Dem | 175-76 | 1991-92 |
| Muehlbronner, Charles A. | 1 | Allegheny | Rep | 109 | 1891-92 |
| Muehlbronner, Charles A. | 1 | Allegheny | Rep | 110 | 1893-94 |
| Muehlbronner, Charles A. | 1 | Allegheny | Rep | 111 | 1895-96 |
| Muehlbronner, Charles A. | 1 | Allegheny | Rep | 112 | 1897-98 |
| Muhlenberg, Peter | | Montgomery | Rep | 22 | 1797-98 |
| Muhly, Conrad | 1 | Philadelphia | Rep | 117 | 1907-08 |
| Muhly, Conrad | 1 | Philadelphia | Rep | 116 | 1905-06 |
| Muir, W. W. | | Warren | Rep | 131 | 1935-36 |
| Muir, W. W. | | Warren | Rep | 132 | 1937-38 |
| Muir, W. W. | | Warren | Rep | 133 | 1939-40 |
| Muir, W. W. | | Warren | Rep | 134 | 1941-42 |
| Muir, W. W. | | Warren | Rep | 135 | 1943-44 |
| Muldowney, Francis X. | 10 | Philadelphia | Dem | 139 | 1951-52 |
| Muldowney, Francis X. | 10 | Philadelphia | Dem | 140 | 1953-54 |
| Muldowney, Francis X. | 7 | Philadelphia | Dem | 141 | 1955-56 |
| Muldowney, Francis X. | 7 | Philadelphia | Dem | 142 | 1957-58 |
| Muldowney, Francis X. | 7 | Philadelphia | Dem | 143-4 | 1959-60 |
| Muldowney, Francis X. | 7 | Philadelphia | Dem | 145-6 | 1961-62 |
| Muldowney, Michael J. | 3 | Allegheny | Rep | 126 | 1925-26 |
| Muldowney, Michael J. | 3 | Allegheny | Rep | 127 | 1927-28 |
| Muldowney, Michael J. | 3 | Allegheny | Rep | 128 | 1929-30 |
| Mulhallon, John | | Northampton | Rep | 15 | 1790-91 |
| Mulhearn, Edward M. | | Carbon | Rep | 108 | 1889-90 |
| Mulkie, John R. | 2 | Erie | Rep | 113 | 1899-00 |
| Mulkie, John R. | 2 | Erie | Rep | 114 | 1901-02 |
| Mullaney, John J. | 13 | Philadelphia | Dem | 108 | 1889-90 |
| Mullen, Martin P. | 29 | Philadelphia | Dem | 141 | 1955-56 |
| Mullen, Martin P. | 29 | Philadelphia | Dem | 142 | 1957-58 |
| Mullen, Martin P. | 29 | Philadelphia | Dem | 143-4 | 1959-60 |
| Mullen, Martin P. | 29 | Philadelphia | Dem | 145-6 | 1961-62 |
| Mullen, Martin P. | 29 | Philadelphia | Dem | 147-8 | 1963-64 |
| Mullen, Martin P. | 2 | Philadelphia | Dem | 149-50 | 1965-66 |
| Mullen, Martin P. | 21 | Philadelphia | Dem | 151-52 | 1967-68 |
| Mullen, Martin P. | 189 | Philadelphia | Dem | 153-54 | 1969-70 |
| Mullen, Martin P. | 189 | Philadelphia | Dem | 155-56 | 1971-72 |
| Mullen, Martin P. | 189 | Philadelphia | Dem | 157-58 | 1973-74 |
| Mullen, Martin P. | 189 | Philadelphia | Dem | 159-60 | 1975-76 |
| Mullen, Martin P. | 189 | Philadelphia | Dem | 161-62 | 1977-78 |
| Mullen, Martin P. | 189 | Philadelphia | Dem | 163-64 | 1979-80 |
| Mullen, Martin P. | 189 | Philadelphia | Dem | 165-66 | 1981-82 |
| Mullen, Michael M. | 20 | Allegheny | Dem | 155-56 | 1971-72 |
| Mullen, Michael M. | 20 | Allegheny | Dem | 157-58 | 1973-74 |
| Mullen, Michael M. | 20 | Allegheny | Dem | 159-60 | 1975-76 |
| Mullen, Michael M. | 20 | Allegheny | Dem | 161-62 | 1977-78 |
| Mullen, Thomas | 5 | Philadelphia | Dem | 92 | 1868 |
| Mullin, Alexander C. | | Cambria | Rep | 85 | 1861 |
| Mullin, Henry H. | | Cameron | Rep | 111 | 1895-96 |
| Mullin, Henry H. | | Cameron | Rep | 115 | 1903-04 |
| Mullin, Michael | 13 | Philadelphia | Dem | 91 | 1867 |
| Mullin, Michael | 13 | Philadelphia | Dem | 92 | 1868 |
| Mullin, Michael | 13 | Philadelphia | Dem | 93 | 1869 |
| Mullin, W. Scott | | Bedford | Rep | 108 | 1889-90 |
| Mullin, W. Scott | | Bedford | Rep | 109 | 1891-92 |
| Mumford, Aaron W. | | Warren | Rep | 127 | 1927-28 |
| Mumford, Aaron W. | | Warren | Rep | 128 | 1929-30 |
| Mumford, Aaron W. | | Warren | Rep | 129 | 1931-32 |
| Mumford, Aaron W. | | Warren | Rep | 130 | 1933-34 |
| Mumford, Warren W. | | Wayne | Rep | 99 | 1875 |
| Mumford, Warren W. | | Wayne | Rep | 100 | 1876 |
| Mumma, David | | Dauphin | Opp | 80 | 1856 |
| Mumma, David | | Dauphin | Opp | 81 | 1857 |
| Mumma, Frank G. | 28 | Philadelphia | Rep | 116 | 1905-06 |
| Mumma, Frank G. | 20 | Philadelphia | Rep | 117 | 1907-08 |
| Mumper, George W. | | Cumberland | Dem | 99 | 1875 |
| Mumper, George W. | | Cumberland | Dem | 100 | 1876 |
| Mundy, Phillis | 120 | Luzerne | Dem | 175-76 | 1991-92 |
| Mundy, Phillis | 120 | Luzerne | Dem | 177-78 | 1993-94 |
| Mundy, Phillis | 120 | Luzerne | Dem | 179-80 | 1995-96 |
| Mundy, Phillis | 120 | Luzerne | Dem | 181-82 | 1997-98 |
| Mundy, Phillis | 120 | Luzerne | Dem | 183-84 | 1999-00 |
| Mundy, Phillis | 120 | Luzerne | Dem | 185-86 | 2001-02 |
| Mundy, Phillis | 120 | Luzerne | Dem | 187-88 | 2003-04 |
| Munley, Marion L. | 5 | Lackawanna | Dem | 138 | 1949-50 |
| Munley, Marion L. | 5 | Lackawanna | Dem | 139 | 1951-52 |
| Munley, Marion L. | 5 | Lackawanna | Dem | 140 | 1953-54 |
| Munley, Marion L. | 4 | Lackawanna | Dem | 141 | 1955-56 |
| Munley, Marion L. | 4 | Lackawanna | Dem | 142 | 1957-58 |
| Munley, Marion L. | 4 | Lackawanna | Dem | 143-4 | 1959-60 |
| Munley, Marion L. | 4 | Lackawanna | Dem | 145-6 | 1961-62 |
| Munley, Marion L. | 4 | Lackawanna | Dem | 147-8 | 1963-64 |
| Munley, Marion L. | 5 | Lackawanna | Dem | 137 | 1947-48 |
| Munley, Robert W. | 5 | Lackawanna | Dem | 133 | 1939-40 |
| Munley, Robert W. | 5 | Lackawanna | Dem | 134 | 1941-42 |
| Munley, Robert W. | 5 | Lackawanna | Dem | 135 | 1943-44 |
| Munley, Robert W. | 5 | Lackawanna | Dem | 136 | 1945-46 |
| Munley, Robert W. | 5 | Lackawanna | Dem | 137 | 1947-48 |
| Munley, William J. | 5 | Lackawanna | Dem | 125 | 1923-24 |
| Munley, William J. | 5 | Lackawanna | Dem | 126 | 1925-26 |
| Munley, William J. | 5 | Lackawanna | Dem | 127 | 1927-28 |
| Munley, William J. | 5 | Lackawanna | Dem | 128 | 1929-30 |
| Munley, William J. | 5 | Lackawanna | Dem | 129 | 1931-32 |
| Munley, William J. | 5 | Lackawanna | Dem | 130 | 1933-34 |
| Munley, William J. | 5 | Lackawanna | Dem | 131 | 1935-36 |
| Munley, William J. | 5 | Lackawanna | Dem | 132 | 1937-38 |
| Murdock, W. Crawford | 10 | Allegheny | Rep | 121 | 1915-16 |
| Murdock, W. Crawford | 10 | Allegheny | Rep | 122 | 1917-18 |
| Murdock, William M. | | Washington | Rep | 113 | 1899-00 |
| Murphey, William H. | | Montgomery | Rep | 114 | 1901-02 |
| Murphy, Austin J. | 2 | Washington | Dem | 143-4 | 1959-60 |
| Murphy, Austin J. | 2 | Washington | Dem | 145-6 | 1961-62 |
| Murphy, Austin J. | 2 | Washington | Dem | 147-8 | 1963-64 |
| Murphy, Austin J. | 2 | Washington | Dem | 149-50 | 1965-66 |
| Murphy, Austin J. | 3 | Washington | Dem | 151-52 | 1967-68 |
| Murphy, Austin J. | 48 | Washington | Dem | 153-54 | 1969-70 |
| Murphy, George S. | | York | Dem | 70 | 1846 |
| Murphy, John R. | 1 | Allegheny | Rep | 116 | 1905-06 |
| Murphy, John R. | 1 | Allegheny | Rep | 117 | 1907-08 |
| Murphy, Peter | 2 | Luzerne | Dem | 120 | 1913-14 |
| Murphy, Peter | 2 | Luzerne | Dem | 121 | 1915-16 |
| Murphy, Peter | 2 | Luzerne | Dem | 122 | 1917-18 |
| Murphy, Peter | 2 | Luzerne | Dem | 123 | 1919-20 |
| Murphy, Peter J. | 1 | Delaware | Rep | 141 | 1955-56 |
| Murphy, Peter J. | 1 | Delaware | Rep | 142 | 1957-58 |
| Murphy, Peter J. | 1 | Delaware | Rep | 143-4 | 1959-60 |
| Murphy, Peter W. | 3 | Allegheny | Dem | 130 | 1933-34 |
| Murphy, Samuel D. | | Westmoreland | Rep | 110 | 1893-94 |
| Murphy, Samuel D. | | Westmoreland | Rep | 111 | 1895-96 |
| Murphy, Thomas J., Jr. | 17 | Allegheny | Dem | 163-64 | 1979-80 |
| Murphy, Thomas J., Jr. | 17 | Allegheny | Dem | 165-66 | 1981-82 |
| Murphy, Thomas J., Jr. | 20 | Allegheny | Dem | 167-68 | 1983-84 |
| Murphy, Thomas J., Jr. | 20 | Allegheny | Dem | 169-70 | 1985-86 |
| Murphy, Thomas J., Jr. | 20 | Allegheny | Dem | 171-72 | 1987-88 |
| Murphy, Thomas J., Jr. | 20 | Allegheny | Dem | 173-74 | 1989-90 |
| Murphy, Thomas J., Jr. | 20 | Allegheny | Dem | 175-76 | 1991-92 |
| Murphy, Thomas J., Jr. | 20 | Allegheny | Dem | 177-78 | 1993-94 |
| Murray, Erwin L. | | Cameron | Dem | 147-8 | 1963-64 |
| Murray, Erwin L. | | Cameron | Dem | 149-50 | 1965-66 |
| Murray, Harvey P. | | Snyder | Rep | 141 | 1955-56 |
| Murray, Harvey P. | | Snyder | Rep | 142 | 1957-58 |
| Murray, Harvey P. | | Snyder | Rep | 143-4 | 1959-60 |
| Murray, Harvey P., Jr. | | Snyder | Rep | 149-50 | 1965-66 |
| Murray, Harvey P., Jr. | | Snyder | Rep | 151-52 | 1967-68 |
| Murray, Henry H. | 6 | Allegheny | Rep | 107 | 1887-88 |
| Murray, Hugh J. | 8 | Philadelphia | Rep | 135 | 1943-44 |
| Murray, John | | Northumberland | Rep | 32 | 1807-08 |
| Murray, John | | Northumberland | Rep | 33 | 1808-09 |
| Murray, John | | Northumberland | Rep | 34 | 1809-10 |
| Murray, John | | Northumberland | Rep | 35 | 1810-11 |
| Murray, John | | Allegheny | Dem | 66 | 1842 |
| Murray, John J. | 10 | Allegheny | Dem | 140 | 1953-54 |
| Murray, John J. | 16 | Allegheny | Dem | 141 | 1955-56 |
| Murray, John J. | 16 | Allegheny | Dem | 143-4 | 1959-60 |
| Murray, John J. | 16 | Allegheny | Dem | 145-6 | 1961-62 |
| Murray, John J. | 16 | Allegheny | Dem | 147-8 | 1963-64 |
| Murray, Martin L. | 2 | Luzerne | Dem | 136 | 1945-46 |
| Murray, Paul G. | 1 | Lancaster | Rep | 136 | 1945-46 |
| Murray, Paul G. | 1 | Lancaster | Rep | 137 | 1947-48 |
| Murray, Paul G. | 1 | Lancaster | Rep | 138 | 1949-50 |
| Murray, Paul G. | 1 | Lancaster | Rep | 139 | 1951-52 |
| Murray, Paul G. | 1 | Lancaster | Rep | 140 | 1953-54 |
| Murray, Paul G. | 1 | Lancaster | Rep | 141 | 1955-56 |
| Murray, Paul G. | 1 | Lancaster | Rep | 142 | 1957-58 |
| Murray, Paul G. | 1 | Lancaster | Rep | 143-4 | 1959-60 |
| Murray, Thomas, Jr. | | Northumberland, Union, Columbia | Rep | 38 | 1813-14 |
| Murray, W. A. | | Centre | Dem | 103 | 1879-80 |
| Murray, W. A. | | Centre | Dem | 104 | 1881-82 |
| Murrin, J. Brady | | Butler | Dem | 131 | 1935-36 |
| Murrin, J. Brady | | Butler | Dem | 132 | 1937-38 |
| Murry, James | | Westmoreland | Dem | 59 | 1834-35 |
| Murtha, John P., Jr. | 72 | Cambria | Dem | 153-54 | 1969-70 |
| Murtha, John P., Jr. | 72 | Cambria | Dem | 155-56 | 1971-72 |
| Murtha, John P., Jr. | 72 | Cambria | Dem | 157-58 | 1973-74 |
| Muse, Fauntley | | Allegheny | Whig | 69 | 1845 |
| Muse, John J. | | Allegheny | Whig | 78 | 1854 |
| Muse, John J. | | Allegheny | Whig/Amer | 79 | 1855 |
| Musmanno, M. A. | 12 | Allegheny | Rep | 128 | 1929-30 |
| Musmanno, M. A. | 12 | Allegheny | Rep | 129 | 1931-32 |
| Musselman, C. C. | | Somerset | Rep | 87 | 1863 |
| Musselman, C. C. | | Somerset | Union | 88 | 1864 |
| Musselman, John | | Adams | Opp | 81 | 1857 |
| Musser, Benjamin | | Dauphin | Whig | 65 | 1841 |
| Musser, Benjamin | | Dauphin | Whig | 66 | 1842 |
| Musser, Isaiah D. | | Juniata | Dem | 120 | 1913-14 |
| Musser, Isaiah D. | | Juniata | Dem | 122 | 1917-18 |
| Musser, John | | Lancaster | Fed | 45 | 1820-21 |
| Musser, John R. | 2 | Cambria | Rep | 129 | 1931-32 |
| Musser, Tobias | | Somerset, Cambria | Dem | 67 | 1843 |
| Musser, Tobias | | Somerset | Whig | 68 | 1844 |
| Mustio, T. Mark | 44 | Allegheny | Rep | 187-88 | 2003-04 |
| Musto, James | 3 | Luzerne | Dem | 138 | 1949-50 |
| Musto, James | 3 | Luzerne | Dem | 139 | 1951-52 |
| Musto, James | 3 | Luzerne | Dem | 140 | 1953-54 |
| Musto, James | 3 | Luzerne | Dem | 141 | 1955-56 |
| Musto, James | 3 | Luzerne | Dem | 142 | 1957-58 |
| Musto, James | 3 | Luzerne | Dem | 143-4 | 1959-60 |
| Musto, James | 3 | Luzerne | Dem | 145-6 | 1961-62 |
| Musto, James | 3 | Luzerne | Dem | 147-8 | 1963-64 |
| Musto, James | 3 | Luzerne | Dem | 149-50 | 1965-66 |
| Musto, James | 3 | Luzerne | Dem | 151-52 | 1967-68 |
| Musto, James | 118 | Luzerne | Dem | 153-54 | 1969-70 |
| Musto, James | 118 | Luzerne | Dem | 155-56 | 1971-72 |
| Musto, Raphael | 118 | Luzerne | Dem | 157-58 | 1973-74 |
| Musto, Raphael | 118 | Luzerne | Dem | 159-60 | 1975-76 |
| Musto, Raphael | 118 | Luzerne | Dem | 161-62 | 1977-78 |
| Musto, Raphael | 118 | Luzerne | Dem | 163-64 | 1979-80 |
| Musto, Raphael | 118 | Luzerne | Dem | 155-56 | 1971-72 |
| Myer, E. Reed | | Bradford | Rep | 97 | 1873 |
| Myer, E. Reed | | Bradford | Rep | 98 | 1874 |
| Myer, E. Reed | | Bradford | Rep | 101 | 1877 |
| Myer, E. Reed | | Bradford | Rep | 102 | 1878 |
| Myer, Isaac | | Bradford, Tioga | Dem | 60 | 1835-36 |
| Myer, Isaac | | Philadelphia City | Whig | 65 | 1841 |
| Myer (Myers), Samuel | | Lehigh | Dem | 48 | 1823-24 |
| Myer, William | | Bradford | Fed | 47 | 1822-23 |
| Myers, Ellis Iaeger | | York | Dem | 116 | 1905-06 |
| Myers, Emanuel | | York | Dem | 99 | 1875 |
| Myers, Emanuel | | York | Dem | 100 | 1876 |
| Myers, Ephraim | | Adams | Rep | 106 | 1885-86 |
| Myers, Frederick H., Jr. | 12 | Philadelphia | Rep | 129 | 1931-32 |
| Myers, Frederick H., Jr. | 12 | Philadelphia | Rep | 130 | 1933-34 |
| Myers, George W. | 4 | Philadelphia | Rep | 93 | 1869 |
| Myers, Grover C. | | Adams | Dem | 125 | 1923-24 |
| Myers, Harry Russell | | Washington | Rep | 121 | 1915-16 |
| Myers, Henry | | Adams | Dem | 67 | 1843 |
| Myers, Henry J. | | Adams | Dem | 85 | 1861 |
| Myers, Henry J. | | Adams | Dem | 87 | 1863 |
| Myers, Henry S. | 18 | Philadelphia | Rep | 108 | 1889-90 |
| Myers, James | | Lancaster | Rep | 86 | 1862 |
| Myers, John | 201 | Philadelphia | Dem | 179-80 | 1995-96 |
| Myers, John | 201 | Philadelphia | Dem | 181-82 | 1997-98 |
| Myers, John | 201 | Philadelphia | Dem | 183-84 | 1999-00 |
| Myers, John | 201 | Philadelphia | Dem | 185-86 | 2001-02 |
| Myers, John | 201 | Philadelphia | Dem | 187-88 | 2003-04 |
| Myers, John C. | | Berks | Dem | 71 | 1847 |
| Myers, John C. | | Berks | Dem | 72 | 1848 |
| Myers, John C. | | Berks | Dem | 73 | 1849 |
| Myers, L. N. | | Snyder | Rep | 104 | 1881-82 |
| Myers, Levi M. | | York | Dem | 115 | 1903-04 |
| Myers, Michael Ozzie | 184 | Philadelphia | Dem | 155-56 | 1971-72 |
| Myers, Michael Ozzie | 184 | Philadelphia | Dem | 157-58 | 1973-74 |
| Myers, Michael Ozzie | 184 | Philadelphia | Dem | 159-60 | 1975-76 |
| Myers, Philip M. | 11 | Philadelphia | Rep | 125 | 1923-24 |
| Myers, Philip M. | 11 | Philadelphia | Rep | 126 | 1925-26 |
| Myers, Philip M. | 11 | Philadelphia | Rep | 127 | 1927-28 |
| Myers, Philip M. | 11 | Philadelphia | Rep | 128 | 1929-30 |
| Myers, Philip M. | 11 | Philadelphia | Rep | 129 | 1931-32 |
| Myers, Robert L. | | Cumberland | Dem | 113 | 1899-00 |
| Myers, Robert L. | | Cumberland | Dem | 114 | 1901-02 |
| Myers, Robert L. | | Cumberland | Dem | 115 | 1903-04 |
| Myers, S. B. | | Venango | Rep | 103 | 1879-80 |
| Myers, S. B. | | Venango | Rep | 104 | 1881-82 |
| Myers, S. Harry | 26 | Philadelphia | Rep | 137 | 1947-48 |
| Myhan, Lee P. | 13 | Philadelphia | Dem | 136 | 1945-46 |
| Mylin, Amos H. | | Lancaster | Rep | 97 | 1873 |
| Mylin, Amos H. | | Lancaster | Rep | 98 | 1874 |
| Mylin, Amos H. | 2 | Lancaster | Rep | 99 | 1875 |
| Mylin, Amos H. | 2 | Lancaster | Rep | 100 | 1876 |
| Myton, Thomas W. | | Huntingdon | Rep | 105 | 1883-84 |