Under the new bylaws approved at the 2007 meeting, the office of secretary-treasurer was split into two positions.
| Years | Secretary-Treasurer |
|---|
| 2001–2008 | John W. Watson (Arkansas Tech University) |
| 1996–2001 | Robert McMillan (Oklahoma Christian University) |
| 1991–1996 | Stan Eliason (University of Oklahoma) |
| 1978–1991 | John M. Jobe (Oklahoma State University) |
| 1970–1978 | E. K. McLachlan (Oklahoma State University) |
| 1966–1970 | H. V. Huneke (University of Oklahoma) |
| 1952–1966 | R. V. Andree (University of Oklahoma) |
| 1939–1952 | J. C. Brixey (University of Oklahoma) |
| 1935–1939 | C. E. Springer (University of Oklahoma) |
| 1933–1935 | E. F. Allen (Oklahoma A and M College) |