- Forest Products Laboratory (U.S.)616
- Oregon State College. Agricultural Experiment Station288
- Oregon State College. Federal Cooperative Extension Service201
- Pacific Northwest Forest And Range Experiment Station (Portland, Or.)50
- Oregon. Fish Commission36
- Oregon Forest Products Laboratory35
- Oregon State College. Extension Service29
- Oregon. Forest Lands Research Center, Corvallis27
- Oregon State Board Of Forestry26
- Oregon State University. Agricultural Experiment Station25
- Fobes, E. W.22
- Gerry, Eloise, B. 188521
- Kuenzi, Edward W.20
- Moravets, F. L.20
- Norris, Charles, B. (Charles Brazer), 1894 20
- Warren, Rex19
- Marriage, Lowell D.18
- Browne, F. L. (Frederick Lincoln), 1895 16
- Davis, George B. (George Balfour), 1915 16
- Bogart, Ralph, 1908 14