- Oregon State University. College Of Forestry88
- Pacific Northwest Forest And Range Experiment Station (Portland, Or.)49
- Oregon State University. Forest Research Laboratory31
- United States. Forest Service. Pacific Northwest Region. Thirty Year Club31
- United States. Forest Service24
- Moravets, F. L.18
- Pacific Northwest Forest Experiment Station (Portland, Or.)10
- Buell, Edward D.8
- Spada, Benjamin7
- Kinch, Michael P.4
- United States. Division Of Forestry4
- Conard, Susan G.3
- Emmingham, William H.3
- Graves, Henry Solon, 1871 19513
- Mattoon, Wilbur R. (Wilbur Reed), 1875 19413
- Bones, James T.2
- Gedney, Donald R.2
- Gibson, Kenneth E.2
- Lauridsen, M. J.2
- Morford, Shawn2