- Oregon State University. Extension Service191
- Oregon State College. Federal Cooperative Extension Service73
- Oregon State College. Federal Cooperative Extension Service71
- Oregon State University. Cooperative Extension Service48
- Cowgill, Helen Julia33
- Johnson, Duane P.23
- Sawer, Barbara J.13
- Koester, Ardis W.11
- Boldt, Bill9
- Pacific Northwest Cooperative Extension9
- Bourdeau, Virginia8
- Lundeberg, Roberta8
- Scales, Murle8
- Boltes, Barbara V.7
- Franklin, Mary F.7
- Larwood, Lillian7
- Oregon State Agricultural College. Extension Service7
- Gillen, Winnifred K.6
- Landers, John H.6
- Lewis, Margaret6