- United States. Bureau Of Land Management36
- Klamath Falls Resource Area33
- United States. Forest Service5
- United States. Forest Service. Pacific Northwest Region. Thirty Year Club5
- Oregon State University2
- Oregon. State Game Commission2
- United States. Bureau Of Reclamation.2
- United States. Forest Service.2
- Williams, Gerald W.2
- Ballard, Frank Llewellyn1
- Braunworth, William S.1
- Burright, Harmony S. J.1
- Ciocco, Anthony1
- Clar, C. Raymond1
- Connelly, John W.1
- Edge, W. Daniel1
- Ellis, Steven A.1
- Fedkiw, John1
- Forest History Society1
- Frenkel, Robert E.1