- Oregon State University. Agricultural Experiment Station25
- Oregon State College. Agricultural Experiment Station12
- Oregon State College. Extension Service11
- Oregon Agricultural College. Experiment Station10
- Oregon State College. Federal Cooperative Extension Service8
- Hartman, Henry, 1889 4
- Oregon Agricultural Experiment Station4
- Potter, E. L. (Ermine Lawrence), 1884 4
- Alban, L. A. (Lawrence Arthur), 1922 19653
- Besse, Ralph S. (Ralph Stephen), 1887 3
- Hunter, Albert S. (Albert Sinclair), 1908 19913
- Jenkins, Lawrence3
- Lewis, C. I. (Claude Isaac), 1880 19243
- Oregon Agricultural College. Extension Service3
- Oregon State University. Sea Grant Marine Advisory Program3
- Bogart, Ralph, 1908 2
- Cushman, H. E.2
- Eastern Oregon Agricultural Research Center2
- Gabriel, Stephen R.2
- Gish, Norville R.2