- Oregon State University43
- United States. Forest Service. Pacific Northwest Region. Thirty Year Club11
- Oregon State University. Forest Research Laboratory5
- Oregon State University. Agricultural Experiment Station4
- de Szoeke, Simon P.3
- Et Al.3
- Lane County Historical Society (Or.)3
- Oregon State University. Extension Service3
- Adamus, Paul R.2
- Aldwin, Carolyn M.2
- Allen, Andrew E.2
- Anderson, Anne J.2
- Automobile Club Of Oregon2
- Bachelet, Dominique2
- Bandy, A. R.2
- Benedict, K. B.2
- Blumhagen, Rachel2
- Brandt, Patricia A.2
- Breakwell, Katy2
- Brinkac, Lauren M.2