- Oregon State University. Cooperative Extension Service[remove]353
- Oregon State University. Extension Service77
- Jackman, E. R.15
- Jackman, E. R. (Edwin Russell), 1894 196715
- Pacific Northwest Cooperative Extension13
- Washington State University. Cooperative Extension Service13
- University Of Idaho. Cooperative Extension Service11
- Every, R. W.9
- Frasier, Roberta C.8
- Macswan, Iain C.8
- Brasher, Ruth E.7
- Cornett, Elgin7
- Franklin, Mary F.7
- Ross, Jackson7
- Johnson, Theta6
- University Of Idaho. Agricultural Extension Service6
- Strawn, Bernice5
- Wilder, Robert L.5
- Brown, Dorothy F. (Dorothy Furtick)4
- Capizzi, Joseph4