- Oregon State University. Agricultural Experiment Station639
- Oregon State College. Federal Cooperative Extension Service396
- Oregon State College. Agricultural Experiment Station392
- Oregon Agricultural College. Experiment Station186
- Oregon State Agricultural College. Extension Service183
- Oregon State Agricultural College. Agricultural Experiment Station140
- Oregon Agricultural College. Extension Service106
- Oregon Agricultural Experiment Station84
- Bouquet, A. G. B. (Arthur George Bristow), 1885 74
- Oregon State College. Extension Service71
- Oregon State University. Extension Service/Marine Advisory Program48
- Jackman, E. R. (Edwin Russell), 1894 46
- Jenkins, Lawrence39
- Mumford, D. Curtis (Dwight Curtis), 1900 39
- Columbia Basin Agricultural Research Center34
- Potter, E. L. (Ermine Lawrence), 1884 34
- United States. Agricultural Research Service34
- Oregon State University. Federal Cooperative Extension Service31
- Powers, W. L. (Wilbur Louis), 188731
- Oregon State University. Malheur Experiment Station30