- Oregon Agricultural Experiment Station51
- French, H. T. (Hiram Taylor), 1862 14
- Shaw, G. W. (George Wright), 1864 14
- United States. Division Of Forestry14
- Coote, George, 1842 19088
- Washburn, F. L. (Frederic Leonard), 1860 19278
- Fernow, B. E. (Bernhard Eduard), 1851 19237
- Oregon State Agricultural College. Experiment Station7
- Oregon Agricultural College. Experiment Station6
- Oregon State Agricultural College5
- Thompson, C. D. (Charles D.)5
- Craig, Moses4
- Oregon State University. Agricultural Experiment Station4
- United States. Department Of Agriculture. Forestry Division4
- Hedrick, U. P.3
- Lotz, Dumont3
- Roth, Filibert, 1858 19253
- Cordley, A. B. (Arthur Burton), 1864 19362
- Fernow, B. E. (Bernhard Eduard), 1851 19232
- Oregon. State Board Of Fish Commissioners2