- 1879 – 1881 – Clarence King
- 1881 – 1894 – John Wesley Powell
- 1894 – 1907 – Charles Doolittle Walcott
- 1907 – 1930 – George Otis Smith
- 1930 – 1943 – Walter Curran Mendenhall
- 1943 – 1956 – William Embry Wrather
- 1956 – 1965 – Thomas Brennan Nolan
- 1965 – 1971 – William Thomas Pecora
- 1971 – 1978 – Vincent Ellis McKelvey
- 1978 – 1981 – Henry William Menard
- 1981 – 1993 – Dallas Lynn Peck
- 1994 – 1997 – Gordon P. Eaton
- 1998 – 2005 – Charles G. Groat
- 2006 - 2009 – Mark Myers (demisionat la 9 ianuarie 2009)
- 2009 - prezent – Suzette Kimball, director interimar
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