- Oregon Agricultural College. Experiment Station16
- Forest Products Laboratory (U.S.)7
- Oregon Agricultural College. Extension Service4
- Oregon State Agricultural College. Agricultural Experiment Station4
- Oregon State College. Extension Service4
- Truax, T. R. (Thomas Roy), 1886 4
- Powers, W. L. (Wilbur Louis), 18873
- Barss, H. P. (Howard Phillips), 1885 2
- Hartman, Henry, 1889 2
- Lockley, Fred, 1871 2
- Lovett, A. L. (Arthur Lester), 1885 19242
- Meany, Edmond S. (Edmond Stephen), 1862 19352
- Oregon Agricultural College. Alumni Association2
- Potter, E. L. (Ermine Lawrence), 1884 2
- Show, S. B. (Stuart Bevier), 1886 19632
- United States. Department Of Agriculture2
- United States. Forest Service2
- Wilson, T. R. C. (Thomas Randall Carson), 1884 2
- Albert, Arthur Lemuel, 1899 1
- Allen, Thomas Cort1