- Oregon State University7
- Fickas, Kate C.3
- Indian War Veterans And Historical Society3
- Native Sons Of Oregon3
- Oregon Pioneer Association3
- Abbott, John S. C. (John Stevens Cabot), 1805 18772
- Automobile Club Of Oregon2
- Brook, Edward J.2
- Christy, John A.2
- Conwell, Russell Herman, 1843 19252
- E & S Environmental Chemistry, Inc.2
- Gilmont, Susan2
- Hazelton, George Cochrane, 1868 19212
- Markland, Mary2
- Mason, H. Benjamin2
- Oregon State University. Forest Research Laboratory2
- Pavarajarn, Varong2
- Raymond, Richard B.2
- Sullivan, Timothy J.2
- United States. Forest Service. Pacific Northwest Region. Thirty Year Club2