- Oregon State University. Agricultural Experiment Station1,124
- Oregon State College. Agricultural Experiment Station843
- Oregon State Agricultural College. Agricultural Experiment Station158
- Oregon State University. Extension Service94
- Mack, H. J.63
- Mote, Don C. (Don Carlos), 1887 63
- Baggett, James R.55
- Mumford, D. Curtis (Dwight Curtis), 1900 46
- Frazier, W. A.45
- United States. Agricultural Research Service42
- Southern Oregon Agricultural Experiment Station41
- Columbia Basin Agricultural Research Center39
- Oregon State University. Engineering Experiment Station35
- Westigard, Peter H.34
- Oregon State University. Malheur Experiment Station33
- Powers, W. L. (Wilbur Louis), 188732
- Davis, George B. (George Balfour), 1915 31
- Youngberg, Harold Wayne, 1929 30
- Mcwhorter, Frank, 1896 198529
- Boersma, L.28