This district was created in 1833. The district was eliminated in 1993.
| Representative |
Party |
Years |
District home |
Note |
| District created in 1833 |
| Harmar Denny |
Anti-Masonic |
March 4, 1833 – March 3, 1837 |
Pittsburgh |
Redistricted from the 16th district, not a candidate for re-nomination in 1832 |
| Richard Biddle |
Anti-Masonic |
March 4, 1837 – ???, 1840 |
Pittsburgh |
Resigned |
| vacant |
???? ????, 1840 – October 13, 1840 |
Henry Marie Brackenridge |
Whig |
October 13, 1840 – March 3, 1841 |
Pittsburgh |
Unsuccessful candidate for renomination in 1840 |
| William W. Irwin |
Whig |
March 4, 1841 – March 3, 1843 |
Pittsburgh |
Not a candidate for reelection in 1842 |
| Samuel Hays |
Democrat |
March 4, 1843 – March 3, 1845 |
Franklin |
Not a candidate for renomination in 1844 |
| William Swan Garvin |
Democrat |
March 4, 1845 – March 3, 1847 |
Mercer |
|
| John Wilson Farrelly |
Whig |
March 4, 1847 – March 3, 1849 |
Meadville |
Not a candidate for renomination in 1848 |
| John W. Howe |
Free Soil |
March 4, 1849 – March 3, 1851 |
|
|
| Whig |
March 4, 1851 – March 3, 1853 |
|
| Thomas M. Howe |
Whig |
March 4, 1853 – March 3, 1855 |
Pittsburgh |
Redistricted from the 21st district, not a candidate for renomination in 1854 |
| Samuel A. Purviance |
Opposition |
March 4, 1855 – March 3, 1857 |
Pittsburgh |
|
| Republican |
March 4, 1857 – March 3, 1859 |
Unsuccessful candidate for renomination in 1858 |
| Robert McKnight |
Republican |
March 4, 1859 – March 3, 1863 |
Pittsburgh |
|
James K. Moorhead |
Republican |
March 4, 1863 – March 3, 1869 |
Pittsburgh |
Redistricted from the 21st district, declined to be a candidate for renomination in 1868 |
James S. Negley |
Republican |
March 4, 1869 – March 3, 1875 |
Pittsburgh |
|
James H. Hopkins |
Democratic |
March 4, 1875 – March 3, 1877 |
Pittsburgh |
Unsuccessful candidate for reelection in 1876 |
Russell Errett |
Republican |
March 4, 1877 – March 3, 1883 |
Pittsburgh |
Unsuccessful candidate for reelection in 1882 |
James H. Hopkins |
Democratic |
March 4, 1883 – March 3, 1885 |
Pittsburgh |
Unsuccessful candidate for reelection in 1884 |
James S. Negley |
Republican |
March 4, 1885 – March 3, 1887 |
Pittsburgh |
|
John Dalzell |
Republican |
March 4, 1887 – March 3, 1903 |
Pittsburgh |
Redistricted to the 30th district |
George F. Huff |
Republican |
March 4, 1903 – March 3, 1911 |
Greensburg |
Not a candidate for renomination in 1910 |
| Curtis H. Gregg |
Democratic |
March 4, 1911 – March 3, 1913 |
Greensburg |
Unsuccessful candidate for renomination in 1912 |
| Abraham L. Keister |
Republican |
March 4, 1913 – March 3, 1917 |
Scottdale |
Unsuccessful candidate for renomination in 1916 |
| Edward E. Robbins |
Republican |
March 4, 1917 – January 25, 1919 |
Greensburg |
Died |
| vacant |
January 25, 1919 – March 3, 1919 |
| John H. Wilson |
Democratic |
March 4, 1919 – March 3, 1921 |
Butler |
Elected to seat in special election to replace re-elected deceased Rep. Edward E. Robbins,Unsuccessful candidate for renomination in 1920 |
Adam M. Wyant |
Republican |
March 4, 1921 – March 3, 1923 |
Greensburg |
Redistricted to the 31st district |
| Samuel F. Glatfelter |
Democratic |
March 4, 1923 – March 3, 1925 |
York |
Unsuccessful candidate for reelection in 1924 |
| Franklin Menges |
Republican |
March 4, 1925 – March 4, 1931 |
York |
Unsuccessful candidate for reelection in 1930 |
| Harry L. Haines |
Democratic |
March 4, 1931 – January 3, 1939 |
York |
Unsuccessful candidate for reelection in 1938 |
| Chester H. Gross |
Republican |
January 3, 1939 – January 3, 1941 |
|
Unsuccessful candidate for reelection in 1940 |
| Harry L. Haines |
Democratic |
January 3, 1941 – January 3, 1943 |
York |
Unsuccessful candidate for reelection in 1942 |
| Chester H. Gross |
Republican |
January 3, 1943 – January 3, 1945 |
|
Redistricted from the 21st district |
| D. Emmert Brumbaugh |
Republican |
January 3, 1945 – January 3, 1947 |
|
Redistricted from the 23rd district, not a candidate for renomination in 1946 |
| James E. Van Zandt |
Republican |
January 3, 1947 – January 3, 1953 |
|
Redistricted to the 20th district |
| John P. Saylor |
Republican |
January 3, 1953–1973 |
|
Redistricted from the 26th district, Redistricted to the 12th district |
| Thomas E. Morgan |
Democratic |
January 3, 1973 – January 3, 1977 |
|
Redistricted from the 26th district, not a candidate for reelection in 1976 |
| Austin J. Murphy |
Democratic |
January 3, 1977 – January 3, 1993 |
North Charleroi |
Redistricted to the 20th district |
| District eliminated in 1993 |