This district was created in 1833. The district was eliminated in 1993.
| Representative |
Party |
Years |
District home |
Note |
| District created in 1833 |
| Samuel S. Harrison |
Jacksonian |
March 4, 1833 – March 3, 1837 |
Kittanning |
|
| William Beatty |
Democratic |
March 4, 1837 – March 3, 1841 |
Butler |
|
| William Jack |
Democratic |
March 4, 1841 – March 3, 1843 |
Greensburg |
|
| Charles M. Reed |
Whig |
March 4, 1843 – March 3, 1845 |
Erie |
Unsuccessful candidate for re-election in 1844 |
| James Thompson |
Democratic |
March 4, 1845 – March 3, 1851 |
Erie |
Did not run for reelection in 1850 |
| Carlton B. Curtis |
Democratic |
March 4, 1851 – March 3, 1853 |
Erie |
Redistricted to the 16th district |
| Michael C. Trout |
Democratic |
March 4, 1853 – March 3, 1855 |
Hickory Township |
Unsuccessful candidate for re-election in 1854 |
| John Allison |
Opposition |
March 4, 1855 – March 3, 1857 |
Beaver |
Retired from the House in 1856 |
| William Stewart |
Republican |
March 4, 1857 – March 3, 1861 |
Mercer |
|
| John W. Wallace |
Republican |
March 4, 1861 – March 3, 1863 |
New Castle |
Unsuccessful candidate for reelection in 1862 |
| Thomas Williams |
Republican |
March 4, 1863 – March 3, 1869 |
Pittsburgh |
|
| Darwin Phelps |
Republican |
March 4, 1869 – March 3, 1871 |
Kittanning |
Not candidate for renomination in 1870 |
| Ebenezer McJunkin |
Republican |
March 4, 1871 – ????, ????? |
Butler |
Resigned to become president judge of judicial circuit of Pennsylvania |
| John M. Thompson |
Republican |
????, ???? – March 4, 1875 |
Butler |
|
| Alexander G. Cochran |
Democratic |
March 4, 1875 – March 3, 1877 |
Pittsburgh |
Unsuccessful candidate for reelection in 1876 |
| Thomas M. Bayne |
Republican |
March 4, 1877 – March 3, 1891 |
Pittsburgh |
Declined nomination in 1890 |
| William A. Stone |
Republican |
March 4, 1891 – November 9, 1898 |
Pittsburgh |
Resigned to become Governor of Pennsylvania |
| vacant |
November 9, 1898 – November 29, 1898 |
| William H. Graham |
Republican |
November 29, 1898 – March 3, 1903 |
Pittsburgh |
Unsuccessful candidate for reelection in 1902 |
| Allen F. Cooper |
Republican |
March 4, 1903 – March 3, 1911 |
Uniontown |
|
| Thomas S. Crago |
Republican |
March 4, 1911 – March 3, 1913 |
Waynesburg |
Unsuccessful candidate for reelection in 1912 |
| Wooda N. Carr |
Democratic |
March 4, 1913 – March 3, 1915 |
Uniontown |
Unsuccessful candidate for reelection in 1914 |
| Robert F. Hopwood |
Republican |
March 4, 1915 – March 3, 1917 |
Uniontown |
Unsuccessful candidate for reelection in 1916 |
| Bruce F. Sterling |
Democratic |
March 4, 1917 – March 3, 1919 |
Uniontown |
Unsuccessful candidate for reelection in 1918 |
| Samuel A. Kendall |
Republican |
March 4, 1919 – March 3, 1923 |
Somerset |
Redistricted to the 24th district |
| William I. Swoope |
Republican |
March 4, 1923 – March 3, 1927 |
Clearfield |
Not a candidate for renomination in 1926 |
| J. Mitchell Chase |
Republican |
March 4, 1927 – March 3, 1933 |
Clearfield |
Not a candidate for renomination in 1932 |
| J. Banks Kurtz |
Republican |
March 4, 1933 – January 3, 1935 |
Altoona |
Redistricted from the 21st district, unsuccessful candidate for reelection in 1934 |
| Don Gingery |
Democratic |
January 3, 1935 – January 3, 1939 |
Clearfield |
Unsuccessful candidate for reelection in 1938 |
| James E. Van Zandt |
Republican |
January 3, 1939 – September 24, 1943 |
|
Resigned to re-enter service with the United States Navy |
| vacant |
September 24, 1943 – November 2, 1943 |
| D. Emmert Brumbaugh |
Republican |
November 2, 1943 – January 3, 1945 |
|
Redistricted to the 22nd district |
| J. Buell Snyder |
Democratic |
January 3, 1945 – February 24, 1946 |
|
Redistricted from the 24th district, died |
| vacant |
February 24, 1946 – May 21, 1946 |
| Carl H. Hoffman |
Republican |
May 21, 1946 – January 3, 1947 |
Somerset |
Not a candidate for renomination in 1946 |
| William J. Crow |
Republican |
January 3, 1947 – January 3, 1949 |
Uniontown |
Unsuccessful candidate for reelection in 1948 |
| Anthony Cavalcante |
Democratic |
January 3, 1949 – January 3, 1951 |
Uniontown |
Unsuccessful candidate for reelection in 1950 |
| Edward L. Sittler, Jr. |
Republican |
January 3, 1951 – January 3, 1953 |
Uniontown |
Unsuccessful candidate for reelection in 1952 |
| Leon H. Gavin |
Republican |
January 3, 1953 – September 15, 1963 |
Oil City |
Redistricted from the 19th district, died |
| vacant |
September 15, 1963 – November 5, 1963 |
| Albert W. Johnson |
Republican |
November 5, 1963 – January 3, 1977 |
Smethport |
Unsuccessful candidate for reelection in 1976 |
| Joseph S. Ammerman |
Democratic |
January 3, 1977 – January 3, 1979 |
Curwensville |
Unsuccessful candidate for reelection in 1978 |
| William F. Clinger, Jr. |
Republican |
January 3, 1979 – January 3, 1993 |
Warren |
Redistricted to the 5th district |
| District eliminated in 1993 |