- Oregon. Forest Lands Research Center, Corvallis27
- Oregon State Board Of Forestry26
- Oregon Forest Products Laboratory18
- Lavender, Denis P.14
- Oregon Forest Lands Research Center10
- Bever, Dale N.7
- Engstrom, W. H.7
- Forest Products Research Center7
- Hooven, Edward F. (Edward Frank)7
- Osc Oregon Forestry Alumni Association7
- Pfeiffer, J. R. (Jack Russell)7
- Berry, Dick Wallace, 1914 4
- Grantham, John Bernard3
- Oregon Forest Research Center3
- Berg, Alan B.2
- Burrows, Charles Henry2
- Corder, Stanley E.2
- Espenas, Leif D.2
- Gartz, Jack Frederick2
- Graham, R. D. (Robert D.)2