- Oregon Agricultural College. Experiment Station7
- Oregon Agricultural College. Extension Service4
- Robinson, R. H. (Reginald Heber), 1886 2
- Ayres, Robert W. (Robert William), 1880 1
- Bullis, D. E. (Deloss Everett), 1894 19841
- Colby, Harold Leslie1
- Engbretson, Albert Edward1
- Fitts, Edward B.1
- Gardner, Harry Harrison1
- Gifford Pinchot National Forest (Agency : U.S.)1
- Hale, Ralph Irvin1
- Haley, Robert Murkland1
- Hurd, C. J. (Clarence J.), 1905 1
- Hutchinson, Wallace1
- Jamison, N. C. (Neal Clement), 1890 1
- Jardine, James T. (James Tertius), 1881 19541
- Jarvis, John Francis1
- Kable, George W. (George Wallace), 1888 1
- Larson, Harold William Emanuel1
- Lindgren, H. A. (Harry Arthur), 1888 1