- Oregon State College. Extension Service10
- Oregon State University. Agricultural Experiment Station9
- Oregon State College. Federal Cooperative Extension Service8
- Jenkins, Lawrence4
- Jackman, E. R. (Edwin Russell), 1894 3
- Columbia Basin Agricultural Research Center2
- Klamath County (Or.)2
- Moore, James A. (James Allan), 1939 2
- Oregon State College. Agricultural Experiment Station2
- United States. Agricultural Research Service2
- Armstrong, Judith M.1
- Arthur, Louise M.1
- Avery, H. G.1
- Ballard, Frank Llewellyn1
- Britton, C. M. (Carlton M.)1
- Clark, Robert G.1
- Coos County (Or.)1
- Crane, Stuart R.1
- Fore, R. E. (Robert Estes), 1907 1
- Grismer, Mark E.1