1. Alexander Winchell, 1873-1874

2. Erastus Otis Haven, 1874-1880

3. Charles N. Sims, 1881-1893

4. James Roscoe Day, 1894-1922

5. Charles Wesley Flint, 1922-1936

6. William Pratt Graham, 1937-1942

7. William P. Tolley, 1942-1969

8. John Corbally, 1969-1971

9. Melvin A. Eggers, 1971-1991

10. Kenneth A. Shaw, 1991-2004

11. Nancy Cantor, 2004-