- Oregon State University. Agricultural Experiment Station179
- Oregon State Agricultural College. Agricultural Experiment Station137
- Oregon Agricultural College. Experiment Station128
- Oregon State University. Extension Service106
- Oregon State University60
- United States. Agricultural Research Service44
- Columbia Basin Agricultural Research Center39
- Oregon State University. Malheur Experiment Station34
- Pierce, Stephen D.27
- Fitzgerald, Stephen Arthur25
- Oregon State College. Agricultural Experiment Station24
- Potter, E. L. (Ermine Lawrence), 1884 24
- Powers, W. L. (Wilbur Louis), 188722
- Besse, Ralph S. (Ralph Stephen), 1887 21
- United States. Agency For International Development20
- Barth, John A.18
- Central Oregon Agricultural Research Center17
- Karow, Russell S.17
- International Maize And Wheat Improvement Center16
- Robinson, R. H. (Reginald Heber), 1886 16