- Oregon State University. Agricultural Experiment Station37
- Southern Oregon Agricultural Experiment Station37
- Westigard, Peter H.31
- Vanbuskirk, Philip8
- Jackson County (Or.)6
- Oregon State College. Extension Service5
- Gonzalves, Pete4
- Hilton, Richard J.4
- Oregon State University. Extension Service3
- Alban, L. A. (Lawrence Arthur), 1922 19652
- Corder, Stanley E.2
- King, Arthur Solomon, 1906 19722
- Oregon Agricultural College. Experiment Station2
- Sugar, David2
- Willet, M. J.2
- Yungen, John A. (John Alfred)2
- Ahrens, Glenn R.1
- Allen, Robert1
- Bachelet, Dominique1
- Bennett, Max, 1963 1