- Forest Products Laboratory (U.S.)13
- Ross, Charles R. (Charles Robert), 1908 3
- Keller, Eugene L.2
- Oregon State College. Federal Cooperative Extension Service2
- Randall, Warren R.2
- United States. Forest Service2
- Youngs, R. L. (Robert Leland), 1924 2
- Betts, Harold S. (Harold Scofield)1
- Boller, Kenneth H.1
- Champion, F. J.1
- Chidester, G. H.1
- Cowling, Ellis Brevier, 1932 1
- Green, Warren J.1
- Hyttinen, Axel1
- Irish, Arthur E.1
- Laundrie, James F.1
- Malcolm, Fredrick B.1
- Martin, J. Stanley1
- Mumford, D. Curtis (Dwight Curtis), 1900 1
- Oregon State College. Federal Cooperative Extension Service1