- Oregon State University. Agricultural Experiment Station607
- Oregon State College. Federal Cooperative Extension Service433
- Oregon State College. Agricultural Experiment Station409
- Oregon State Agricultural College. Extension Service189
- Oregon Agricultural College. Experiment Station186
- Oregon State Agricultural College. Agricultural Experiment Station141
- Oregon Agricultural College. Extension Service107
- Oregon Agricultural Experiment Station84
- Bouquet, A. G. B. (Arthur George Bristow), 1885 73
- Oregon State College. Extension Service71
- Oregon State University. Extension Service/Marine Advisory Program48
- Jackman, E. R. (Edwin Russell), 1894 46
- Mumford, D. Curtis (Dwight Curtis), 1900 45
- Oregon State College. Federal Cooperative Extension Service45
- Jenkins, Lawrence39
- Potter, E. L. (Ermine Lawrence), 1884 35
- Cowgill, Helen Julia33
- Breithaupt, L. R. (Le Roy), 1886 32
- Powers, W. L. (Wilbur Louis), 188732
- Oregon State University. Federal Cooperative Extension Service31