- Oregon State University20
- Oregon State University. Extension Service13
- Oregon State University. Forest Research Laboratory8
- Osu Forestry Alumni Association8
- Osu Oregon Forestry Alumni Association8
- Oregon State College. Agricultural Experiment Station7
- United States. Forest Service. Pacific Northwest Region. Thirty Year Club6
- United States. Forest Service5
- Journal Of Oregon Ornithology4
- Lane County Historical Society (Or.)4
- Osc Oregon Forestry Alumni Association4
- Rohrmann, George F.4
- Wiegand, Ernest Herman, 1886 4
- Ashford, Peggy3
- Bothum, Candi3
- Chen, Jiquan3
- Erickson, Heather3
- Evenson, Doug3
- Gray, Andrew3
- Izzo, Antonio3