Alexander Winchell, 1873-1874
Erastus Otis Haven, 1874-1880
Charles N. Sims, 1881-1893
James Roscoe Day, 1894-1922
Charles Wesley Flint, 1922-1936
William Pratt Graham, 1937-1942
William P. Tolley, 1942-1969
John Corbally, 1969-1971
Melvin A. Eggers, 1971-1991
Kenneth A. Shaw, 1991-2004
Nancy Cantor, 2004 -