- Oregon State University. Extension Service257
- Oregon State College. Agricultural Experiment Station151
- United States. Forest Service. Northern Region. State & Private Forestry143
- Pscheidt, Jay W.94
- United States. Forest Service. Northern Region70
- James, Robert L.51
- Mcgregor, Mark D.47
- Fisher, Glenn C.45
- Mote, Don C. (Don Carlos), 1887 43
- Oregon State University. Agricultural Experiment Station39
- Walton, Vaughn M.38
- Peachey, Ronald Edward37
- Peachey, Ed34
- Oregon Agricultural College. Experiment Station33
- Olsen, Jeff L.30
- Dooling, Oscar J.28
- Macswan, Iain C.28
- Gibson, Kenneth E.25
- Wiman, Nik G.25
- Brunner, Jay F.24