- Oregon State Agricultural College. Extension Service72
- Oregon State College. Federal Cooperative Extension Service45
- Oregon State Agricultural College. Agricultural Experiment Station24
- Oregon State College. Agricultural Experiment Station11
- United States. Forest Service11
- Bouquet, A. G. B. (Arthur George Bristow), 1885 10
- Jackman, E. R. (Edwin Russell), 1894 10
- Mote, Don C. (Don Carlos), 1887 9
- Jenkins, Lawrence8
- Thompson, B. G. (Benjamin Garrison), 1891 7
- Miller, P. W. (Paul William), 1901 6
- Oregon. Fish Commission6
- Civilian Conservation Corps (U.S.)5
- Civilian Conservation Corps (U.S.). Camp F 96 (Odell Lake, Or.)5
- Fox, F. E. (Frank Elmer), 1889 5
- Lunn, A. G. (Alfred Gunn), 1883 5
- Mcwhorter, O. T.5
- Schuster, C. E. (Carl Ephraim), 1889 5
- Case, Lucy A.4
- Knowlton, Frank L. (Frank Lester), 1894 19404