1777-1798 William McMahon
1798-1804 Thomas Cromwell
1804-1818 George Bruce
1818-1841 Charles Heck
1841-1846 Daniel Blocher
1846-1857 William R. McCulley
1857-1863 John B. Widerrer
1867-1867 George R. Hoover
1867-1873 Elijah Fuller
1873-1875 Charles C. Shriver
1875 Howard M. Fuller
1875-1887 John Rhind
1887-1899 A. H. Dowden
1899-1905 John B. Shannon
1905-1937 Harvey W. Shuck
1937-1946 George E. Jordan
1946 Thomas E. Starken
1946-1960 A. Charles Stewart
1960-1986 James M. Roby
1986-2006 William F. Lashbaugh, Jr. (R)
2006- Rebecca D. Drew (R)