Directors and Chairs
- Franz Brünnow 1854-63
- James C. Watson 1863-79
- Mark W. Harrington 1879-91
- Asaph Hall, Jr. 1892-1905
- William J. Hussey 1905-26 (and Acting Director 1891-92)
- Ralph H. Curtiss 1927-29 (and Acting Director 1926)
- Heber D. Curtis 1930-41
- W. Carl Rufus Acting Director 1929-30 and 1942-45
- A. D. Maxwell Acting Director 1945-46
- Leo Goldberg 1946-60
- Freeman D. Miller Acting Director, 1960-61
- Orren C. Mohler 1962-70 W. Albert
- Al Hiltner 1970-82
Faculty
- John Martin Schaeberle 1876 – 88 (also attended as a student, and returned later.)
Others Associated with the Department
- Henry Phillip Tappan – first president of the University