- Forest Products Laboratory (U.S.)374
- Oregon State College. Federal Cooperative Extension Service320
- Oregon State College. Agricultural Experiment Station319
- Oregon. State Game Commission58
- Bouquet, A. G. B. (Arthur George Bristow), 1885 52
- Mumford, D. Curtis (Dwight Curtis), 1900 34
- Pacific Northwest Forest And Range Experiment Station (Portland, Or.)34
- Fobes, E. W.32
- Jackman, E. R. (Edwin Russell), 1894 32
- Jenkins, Lawrence31
- Oregon State College. Extension Service31
- Mote, Don C. (Don Carlos), 1887 30
- Oregon. Fish Commission29
- Oregon State College. Federal Cooperative Extension Service28
- Oregon State College. Engineering Experiment Station25
- Breithaupt, L. R. (Le Roy), 1886 24
- Oregon Agricultural College. Experiment Station23
- Cowgill, Helen Julia20
- Price, F. E. (Frederick Earl), 1898 18
- Stamm, Alfred J. (Alfred Joaquim), 1897 16