- Oregon Agricultural College. Experiment Station46
- Lewis, C. I. (Claude Isaac), 1880 19249
- Kraus, E. J. (Ezra Jacob), 1885 6
- Oregon Agricultural College6
- Allen, R. W. (Ralph Wilmer), 1885 5
- Oregon Agricultural College. Extension Service5
- Gardner, Victor Ray, 1885 4
- Powers, W. L. (Wilbur Louis), 18874
- Brown, F. R. (Frank Ross)3
- Childs, Leroy, 1888 3
- Potter, E. L. (Ermine Lawrence), 1884 3
- Scudder, H. D. (Henry Desborough), 1881 3
- Tartar, H. V. (Herman Vance), 1882 3
- Bradford, Frederick Charles, 1887 2
- Bradley, C. E. (Charles Edward), 1874 2
- Brown, Gordon G. (Gordon George), 1887 2
- Conover, Charles Tallmadge, 1862 19612
- Dryden, James, 1863 2
- Magness, J. R. (John Robert), 1894 2
- Oregon State Agricultural College. Extension Service2