| 1994 | Charles E. Stanger | Crop and Soil Science/Malheur Experiment Station |
| 1995 | Richard W. Smiley | Botany and Plant Pathology/CBARC |
| 1996 | Bernadine Strik | Horticulture |
| 1997 | David Sugar | Botany and Plant Pathology/SOREC |
| 1998 | Robert Spotts | Botany and Plant Pathology/MCAREC. |
| 2003 | Clint Shock | Crop and Soil Science/Malheur Experiment Station |
| 2004 | Michael Morrissey | COMES |
| 2006 | Christopher Langdon | COMES |
| 2007 | Patricia Kennedy | Fisheries and Wildlife |
