- Oregon State University. Extension Service3,698
- Oregon State University. Cooperative Extension Service353
- Pacific Northwest Cooperative Extension200
- United States. Department Of Agriculture146
- Washington State University. Cooperative Extension130
- University Of Idaho. Cooperative Extension Service113
- Washington State University. Extension104
- University Of Idaho. Extension91
- Gardner, E. Hugh90
- Pscheidt, Jay W.88
- Koester, Ardis W.80
- Stebbins, Robert L.75
- Mansour, N. S.63
- Raab, Carolyn A.58
- Jackson, T. L.56
- Fisher, Glenn C.55
- Hart, John M. (John Mervyn), 1947 51
- Morrow, Alice Mills50
- Olsen, Jeff L.50
- Peachey, Ronald Edward47