- Oregon State College. Agricultural Experiment Station276
- Oregon State College. Federal Cooperative Extension Service264
- Forest Products Laboratory (U.S.)75
- Oregon State College. Federal Cooperative Extension Service41
- Oregon State University. Agricultural Experiment Station35
- Oregon State College. Extension Service29
- Oregon. State Game Commission26
- Warren, Rex19
- Davis, George B. (George Balfour), 1915 16
- Oregon State College. Engineering Experiment Station15
- Pacific Northwest Forest And Range Experiment Station (Portland, Or.)15
- Bogart, Ralph, 1908 14
- Huber, M. G.14
- Oregon Forest Products Laboratory14
- Carter, Myrtle Miller12
- Clark, R. Ralph11
- Gerry, Eloise, B. 188511
- Mumford, D. Curtis (Dwight Curtis), 1900 11
- Every, R. W.10
- Morrison, H. E.10