- Oregon State College. Agricultural Experiment Station16
- Oregon State University. Extension Service10
- Mote, Don C. (Don Carlos), 1887 7
- Oregon Agricultural College. Experiment Station4
- Strik, Bernadine C. (Bernadine Cornelia), 1962 4
- Fisher, Glenn C.3
- Oregon State Agricultural College. Agricultural Experiment Station3
- Rosenstiel, Robert G. (Robert George), 1910 19853
- Schuster, C. E. (Carl Ephraim), 1889 3
- Sheets, W. A. (Willis Arden)3
- Coote, George, 1842 19082
- Cross, Timothy L.2
- Edwards, W. D. (William Donald), 1904 2
- Finn, Chad Elliott2
- Jackson, T. L. (Thomas Lloyd), 1922 2
- Kirsch, R. K. (Richard Kneale), 1923 2
- Mason, Robert George2
- Oregon Agricultural Experiment Station2
- Oregon State University. Agricultural Experiment Station2
- Padfield, Harland2