- Oregon State University. Extension Service383
- Oregon State College. Federal Cooperative Extension Service95
- Oregon State College. Federal Cooperative Extension Service84
- Oregon State University. Cooperative Extension Service57
- Johnson, Duane P.42
- Cowgill, Helen Julia40
- Sawer, Barbara J.34
- Koester, Ardis W.28
- Sander, Gary H.19
- Wilkinson, Ralph19
- Raab, Carolyn A.16
- Boldt, Bill12
- Kelley, Fern S.12
- Boltes, Barbara V.11
- Oregon State Agricultural College. Extension Service11
- Pacific Northwest Cooperative Extension11
- Baker, Mary Jean10
- Bourdeau, Virginia10
- Brand, Jean10
- Johnson, Evelyn H.10