- Pacific Northwest Forest And Range Experiment Station (Portland, Or.)83
- Moravets, F. L.32
- Pacific Northwest Forest Experiment Station (Portland, Or.)26
- Buell, Edward D.12
- Spada, Benjamin8
- Oregon State University. College Of Forestry7
- Gedney, Donald R.6
- Moravets, F. L. (Floyd Lester), 1899 19716
- Bones, James T.4
- Briegleb, Philip A. (Philip Anthes), 1906 19964
- Meagher, George S.4
- Kemp, Paul D.3
- Maclean, Colin D.3
- Sankela, William E.3
- Bolles, W. H.2
- Bruce, Donald, B. 18842
- Hightree, Paul E.2
- Lauridsen, M. J.2
- Mcardle, Richard Edwin, 1899 2
- Meyer, Walter H. (Walter Huber)2