- Oregon State University. Agricultural Experiment Station20
- Oregon State University. Extension Service15
- United States. Forest Service. Pacific Northwest Region. Thirty Year Club15
- Osu Forestry Alumni Association14
- Pacific Northwest Forest And Range Experiment Station (Portland, Or.)12
- Oregon State College. Extension Service11
- Bodyfelt, F. W. (Floyd W.), 1937 10
- Osu Oregon Forestry Alumni Association10
- Osc Oregon Forestry Alumni Association7
- Webster, Janet G.6
- Adams, H. P. (Holyoke Purinton), 1922 4
- Bayer, Range D., 1947 4
- Gamroth, Michael J.4
- Gilmont, Susan4
- Markland, Mary4
- Oregon State College. Agricultural Experiment Station4
- Oregon State University. College Of Forestry4
- Columbia Basin Agricultural Research Center3
- Geyer, Nancy A.3
- Hatch, Melville Harrison, 1898 3