- Oregon State University. Extension Service51
- Johnson, Duane P.46
- Columbia River Gillnetter (Columbia River Fishermen's Protective Union)19
- Oregon State University. College Of Forestry19
- Houglum, Lyla7
- Osu Oregon Forestry Alumni Association7
- Johnson, Duane6
- Oregon State University. Agricultural Experiment Station6
- Oregon State University. Forest Research Laboratory6
- Osu Forestry Alumni Association6
- United States. Forest Service6
- Webster, Janet G.6
- Adams, H. P. (Holyoke Purinton), 1922 5
- Cohen, Warren B.5
- Fischer, Charles5
- Frischknecht, Dean5
- Gilmont, Susan5
- Kennedy, Robert E.5
- Markland, Mary5
- Pacific Northwest Forest And Range Experiment Station (Portland, Or.)5