Charles R. Frederickson, 1935-1945
S. Earl Thompson, 1845-1952
Vernon L. Kretschmer, 1952-1960
Paul Doebel, 1960-1970
Arnold W. Strokhorb, 1968-1970
Sammy J. Rebecca, 1970-1980
Gary B. North, 1980-1990
Stanley Kiser (acting), 1990-1991
George Shoffner, 1991-1998
John E. Collins, 1998-present