- Brown, W. S. (Walter Sheldon), 1878 15
- Oregon State Agricultural College. Extension Service5
- Oregon State College. Agricultural Experiment Station4
- Oregon Agricultural College. Extension Service3
- Oregon State Agricultural College. Agricultural Experiment Station2
- Waldo, George F. (George Fordyce), 18982
- Besse, Ralph S. (Ralph Stephen), 1887 1
- Darrow, George M. (George Mcmillan), 1889 1
- Fitts, Edward B.1
- Lamb, C. C.1
- Lewis, C. I. (Claude Isaac), 1880 19241
- Mcwhorter, O. T.1
- Oregon Agricultural College. Experiment Station1
- Wilcox, L. P. (Lyle Porter), 1895 1