| Name | Title(s) | Dates |
|---|---|---|
| Kendall, John C. | Director of Extension Services | 1911-1937 |
| Kendall, John C. | Director of General Extension | 1938-1941 |
| Stevens, Henry B. | Acting Director of General Extension | 1942-1943 |
| Stevens, Henry B. | Director of General Extension | 1943-1948 |
| Bevan, Laurence S. | Director of Agriculture and Home Economic Extension Service | 1948-1957 |
| Bevan, Laurence S. | Director of Cooperative Extension | 1957-1958 |
| Hoitt, Samuel | Director of Cooperative Extension | 1958-1969 |
| Heckel, Maynard | Director of Cooperative Extension | 1970-1982 |
| Weddle, Benjamin Jr. | Interim Director of Cooperative Extension | 1983-1984 |
| Horne, Peter | Director of Cooperative Extension | 1984-1997 |
| Horne, Peter | Dean and Director of Cooperative Extension | 1992-1998 |
| Pike, John | Dean and Director of Cooperative Extension | 1998-2014 |
| La Valley, Kenneth J. | Dean and Director of Cooperative Extension | 2014- |