- Bouquet, A. G. B. (Arthur George Bristow), 1885 119
- Oregon State College. Extension Service113
- Oregon. Department Of Fish And Wildlife112
- Oregon State University. Water Resources Research Institute109
- Washington State University. Cooperative Extension108
- Washington State University. Extension101
- United States. Forest Service95
- Gardner, E. Hugh94
- Pscheidt, Jay W.90
- University Of Idaho. Cooperative Extension Service90
- University Of Idaho. Extension89
- Oregon Agricultural Experiment Station86
- Oregon State University. Extension Service/Marine Advisory Program85
- Mote, Don C. (Don Carlos), 1887 81
- United States. Forest Service. Northern Region81
- Stebbins, Robert L.80
- Peachey, Ed71
- Hart, John M. (John Mervyn), 1947 70
- Institute For Natural Resources64
- Mansour, N. S.63