- Oregon State Agricultural College. Agricultural Experiment Station9
- Oregon State University. Agricultural Experiment Station4
- Powers, W. L. (Wilbur Louis), 18873
- Coote, George, 1842 19081
- Dreesen, W. H. (William Henry), 1880 1
- Fox, F. E. (Frank Elmer), 1889 1
- Harney Branch Experiment Station1
- Hedrick, U. P.1
- Hutchison, Roy E. (Roy Emery)1
- Johnson, W. T. (Walter Theodore), 1892 19371
- Kable, George W. (George Wallace), 1888 1
- Lunn, A. G. (Alfred Gunn), 1883 1
- Oregon Agricultural College. Experiment Station1
- Ruzek, C. V. (Charles Vladis), 1887 19681
- Selby, H. E. (Halbert Edgerton), 1896 1
- Shattuck, Obil, 1885 1
- Shaw, G. W. (George Wright), 1864 1
- Stephenson, R. E. (Roscoe Elmo), 1885 1
- Wiegand, Ernest Herman, 1886 1