2018-
2002-2018
1992-2002
Anne Dhu McLucas
1990-92
Gary M. Martin, acting
1986-90
Bernard J. Dobroski
1975-86
Morrette L. Rider
1975
Royce Saltzman, acting
1970-75
Robert M. Trotter
1969-70
Edmund A. Cykler, acting
1963-69
Robert M. Trotter
1962-63
Max D. Risinger, acting
1939-62
Theodore Kratt
1917-39
John J. Landsbury
1913-17
Ralph Haine Lyman
1912-13
Carl V. Lachmund
1911-12
Mary Goodbar Morgan
1902-11
Irving Mackay Glen
1896-1902
Wallis Gifford Nash
1888-95
Mary E. McCornack
1886-88
D. W. Coolidge