- Oregon State Agricultural College. Extension Service76
- Oregon Agricultural College. Experiment Station66
- Oregon Agricultural College. Extension Service35
- Lewis, C. I. (Claude Isaac), 1880 192411
- Barss, H. P. (Howard Phillips), 1885 7
- Kraus, E. J. (Ezra Jacob), 1885 7
- Lovett, A. L. (Arthur Lester), 1885 19247
- Dryden, James, 1863 6
- Allen, R. W. (Ralph Wilmer), 1885 5
- Bouquet, A. G. B. (Arthur George Bristow), 1885 5
- Powers, W. L. (Wilbur Louis), 18875
- Barss, A. F. (Alden Forrest), 1888 4
- Gardner, Victor Ray, 1885 4
- Beckwith, T. D. (Theodore Day), 1879 19463
- Brown, F. R. (Frank Ross)3
- Brown, W. S. (Walter Sheldon), 1878 3
- Childs, Leroy, 1888 3
- Magness, J. R. (John Robert), 1894 3
- Mckay, M. B. (Marion Bertice), 1887 3
- Robinson, R. H. (Reginald Heber), 1886 3