- Oregon State University. Extension Service27
- Oregon State College. Federal Cooperative Extension Service17
- Cowgill, Helen Julia9
- Oregon State College. Federal Cooperative Extension Service8
- Oregon State University. Cooperative Extension Service6
- Oregon Agricultural College. Extension Service4
- Bourdeau, Virginia3
- Case, Lucy A.3
- Frischknecht, Dean3
- Jeffreys, Bradford J.3
- Johnson, Duane P.3
- Johnson, Theta3
- Oregon State Agricultural College. Extension Service3
- Sawer, Barbara J.3
- Abell, John R.2
- Anderson, D. E. (Donald Eugene)2
- Anderson, Marilyn2
- Ashford, Peggy2
- Bennion, N. L. (Noel Lindsay), 1903 2
- Bothum, Candi2