- Oregon State University. Agricultural Experiment Station[remove]453
- Oregon State University. Malheur Experiment Station46
- United States. Agricultural Research Service35
- Columbia Basin Agricultural Research Center31
- Central Oregon Agricultural Research Center15
- Klamath County (Or.)15
- Oregon State University. Klamath Agricultural Experiment Station15
- Eastern Oregon Agricultural Research Center11
- Adair, John, 1927 9
- Jackson, T. L. (Thomas Lloyd), 1922 9
- Stout, Floyd Madison, 1931 9
- United States. Department Of Agriculture8
- Boersma, L.7
- Mack, H. J.7
- Mack, H. J. (Harry John), 1926 7
- Oregon State College. Agricultural Experiment Station7
- Brown, William G. (William Galen)6
- Compton, O. C. (Oliver Cecil), 1903 6
- Conklin, Frank S.6
- Edwards, John A.6