- Oregon Agricultural Experiment Station7
- Hopkins, A. D. (Andrew Delmar), 1857 19485
- Oregon Agricultural College. Experiment Station5
- Lewis, C. I. (Claude Isaac), 1880 19244
- United States. Bureau Of Entomology4
- United States. Division Of Forestry4
- Oregon State Agricultural College3
- Oregon State Agricultural College. Experiment Station3
- Indian War Veterans And Historical Society2
- Native Sons Of Oregon2
- Oregon Agricultural College2
- Oregon Pioneer Association2
- Pinchot, Gifford, 1865 19462
- United States. Division Of Entomology2
- Additon, Lucia H. Faxon1
- Allen, R. W. (Ralph Wilmer), 1885 1
- Bruce, Eugene S. (Eugene Sewell), 1869 19201
- Chapman, Charles Hiram, 1859 1
- Christiansen, Conrad1
- Cole, C. A. (Charles Arthur)1