- Oregon Agricultural Experiment Station5
- Indian War Veterans And Historical Society3
- Native Sons Of Oregon3
- Oregon Pioneer Association3
- United States. Division Of Forestry3
- Lewis, C. I. (Claude Isaac), 1880 19242
- Baker, Walter Rawalt1
- Bennett, S. L. (Samuel Louis)1
- Bruce, Eugene S. (Eugene Sewell), 1869 19201
- Chapman, Charles Hiram, 1859 1
- Christiansen, Conrad1
- Davidson, Gertrude1
- Douthit, Mary Osborn1
- Dryden, James, 1863 1
- Fernow, Bernhard Eduard1
- Gray, Greta India1
- Hansell, Lora1
- Harrington, Gretta1
- Hopkins, A. D. (Andrew Delmar), 1857 19481
- Hosmer, Ralph S. (Ralph Sheldon), 1874 19631