| July 3, 1890 26 Stat. 215 |
February 10, 1954 68 Stat. 8 |
| Beatty, James H. 1891-1907 |
Taylor, Fredrick M. 1954-1971 |
| Dietrich, Frank S. 1907-1927 |
Anderson, J. Blaine 1971-1976 |
| Cavanah, Charles C. 1927-1942 |
Callister, Marion J. 1976-1989 |
| Clark, Chase A. 1943-1964 |
Lodge, Edward J.. 1989-2015 |
| McNichols, Raymond C. 1964-1981 |
Nye, David C. 2017- |
| Ryan, Harold L. 1981-1992 |
|
| Winmill, B. Lynn 1995-2021 |
|
| Brailsford, Amanda K. 2023- |