- Oregon Agricultural College. Experiment Station13
- Potter, E. L. (Ermine Lawrence), 1884 12
- Oregon Agricultural Experiment Station7
- Withycombe, Robert, 1880 7
- French, H. T. (Hiram Taylor), 1862 4
- Dean, H. K. (Harold Karl), 1889 2
- Oregon Agricultural College. Extension Service2
- Thompson, C. D. (Charles D.)2
- Withycombe, James, 1854 2
- Allen, Leonard John1
- Fjeldsted, E. J. (Ezra James), 1889 1
- Hukill, Brooke1
- Irish, P. H.1
- Jarvis, John Francis1
- Kable, George W. (George Wallace), 1888 1
- Kent, F. L. (Fred Leroy), 1868 1
- Oliver, A. W. (Alfred Weaver), 1894 1
- Oregon State Agricultural College. Agricultural Experiment Station1
- Rashid, Mohammed Abdul1
- Reynolds, Ralph Elmer1