Creator
- Ross, Charles R. (Charles Robert), 1908 10
- Oregon State University. Extension Service9
- Oregon State College. Federal Cooperative Extension Service4
- Randall, Warren R.4
- Oregon State College. Herbarium3
- Rondon, Silvia I.3
- United States. Forest Service3
- Walton, Vaughn M.3
- Bayer, Range D., 1947 2
- Bond, Carl E.2
- Gilkey, Helen M., 1886 19722
- Hedstrom, Chris2
- Hopkins, William E.2
- Lee, Jana2
- Llewellyn, Bob2
- Packard, Patricia Lois2
- Shearer, Peter W.2
- Wiman, Nik G.2
- Baird, Christopher S.1
- Baker, William Hudson, 1911 1