- Wilster, G. H. (Gustav Hans), 18934
- Barr, W. A.3
- Oregon Agricultural College. Extension Service3
- Oregon State College. Agricultural Experiment Station3
- Oregon State College. Federal Cooperative Extension Service3
- Ewalt, H. P.2
- Nelson, A. Gene2
- Oregon State Agricultural College. Extension Service2
- Oregon State University. Agricultural Experiment Station2
- Oregon State University. Cooperative Extension Service2
- Christensen, S. Kent (Seymour Kent), 1922 1
- Colburn, Jerry Lee1
- Day, E. A.1
- Mikesh, Verna A.1
- Nelson, Leona S.1
- Storvick, Clara Amanda1
- Woodring, Muriel Josepha1