- Oregon State University. Cooperative Extension Service[remove]364
- Oregon State University. Extension Service77
- Washington State University. Cooperative Extension Service16
- Jackman, E. R.15
- Jackman, E. R. (Edwin Russell), 1894 196715
- Pacific Northwest Cooperative Extension15
- University Of Idaho. Cooperative Extension Service12
- University Of Idaho. Agricultural Extension Service11
- Frasier, Roberta C.10
- Every, R. W.9
- Macswan, Iain C.8
- Brasher, Ruth E.7
- Cornett, Elgin7
- Franklin, Mary F.7
- Ross, Jackson7
- Johnson, Theta6
- Capizzi, Joseph5
- Strawn, Bernice5
- Washington State University. Extension Service5
- Wilder, Robert L.5