- Oregon State University. Extension Service60
- Oregon State College. Federal Cooperative Extension Service20
- Oregon State College. Federal Cooperative Extension Service20
- Cowgill, Helen Julia17
- Oregon State University. Cooperative Extension Service9
- Johnson, Duane P.7
- Gillen, Winnifred K.5
- Boldt, Bill4
- Lewis, Margaret4
- Bourdeau, Virginia3
- Jeffreys, Bradford J.3
- Kelley, Fern S.3
- Osis, Vicki3
- Pacific Northwest Cooperative Extension3
- Reynolds, Guy3
- Abell, John R.2
- Anderson, D. E. (Donald Eugene)2
- Anderson, Marilyn2
- Ashford, Peggy2
- Baker, Mary Jean2