- Oregon State University. Agricultural Experiment Station164
- Oregon State Agricultural College. Agricultural Experiment Station130
- Oregon State College. Agricultural Experiment Station49
- Oregon Agricultural College. Experiment Station42
- Oregon Agricultural Experiment Station23
- Oregon State University. Malheur Experiment Station23
- Central Oregon Agricultural Research Center17
- Powers, W. L. (Wilbur Louis), 188715
- Potter, E. L. (Ermine Lawrence), 1884 14
- Oregon State College. Extension Service13
- United States. Agricultural Research Service13
- Columbia Basin Agricultural Research Center12
- Hartman, Henry, 1889 11
- Robinson, R. H. (Reginald Heber), 1886 10
- Mote, Don C. (Don Carlos), 1887 9
- Besse, Ralph S. (Ralph Stephen), 1887 8
- Burrier, A. S. (Arnold Stewart), 1902 19388
- Childs, Leroy, 1888 8
- Eastern Oregon Agricultural Research Center8
- Stevens, Joe B.8