- Oregon State University. Agricultural Experiment Station[remove]1,211
- Oregon State University. Malheur Experiment Station60
- Southern Oregon Agricultural Experiment Station41
- United States. Agricultural Research Service41
- Columbia Basin Agricultural Research Center39
- United States. Agency For International Development34
- Westigard, Peter H.31
- Boersma, L.28
- Oregon State University. Extension Service28
- Mack, H. J.24
- International Maize And Wheat Improvement Center21
- Baggett, James R.20
- Central Oregon Agricultural Research Center17
- Frazier, W. A.17
- Klamath County (Or.)17
- Oregon State University. Klamath Agricultural Experiment Station17
- Eastern Oregon Agricultural Research Center15
- Ralston, A. T. (Allen Thurman), 1915 15
- Davidson, T. P.14
- Mason, Robert George14