- Oregon Agricultural College. Experiment Station98
- Oregon State Agricultural College. Agricultural Experiment Station15
- Potter, E. L. (Ermine Lawrence), 1884 14
- Powers, W. L. (Wilbur Louis), 188714
- Withycombe, Robert, 1880 9
- Oregon Agricultural College8
- Oregon Agricultural College. Extension Service8
- Hartman, Henry, 1889 7
- Lewis, C. I. (Claude Isaac), 1880 19245
- Lovett, A. L. (Arthur Lester), 1885 19245
- Johnston, W. W. (William Waters), 1896 4
- Robinson, R. H. (Reginald Heber), 1886 4
- Stephens, David E. (David Edmund), 1879 4
- Wiegand, Ernest Herman, 1886 4
- Zeller, S. M. (Sanford Myron), 1885 19484
- Brown, Gordon G. (Gordon George), 1887 3
- Childs, Leroy, 1888 3
- Fulton, B. B. (Bentley Ball), 1889 3
- Harvey, Edward Maris, 18883
- Hyslop, G. R. (George Robert), 1884 3