- Oregon Agricultural Experiment Station21
- French, H. T. (Hiram Taylor), 1862 9
- Washburn, F. L. (Frederic Leonard), 1860 19276
- Shaw, G. W. (George Wright), 1864 5
- Thompson, C. D. (Charles D.)4
- Fernow, B. E. (Bernhard Eduard), 1851 19233
- United States. Department Of Agriculture. Forestry Division3
- United States. Division Of Forestry3
- Coote, George, 1842 19082
- Tratman, E. E. R. (Edward Ernest Russell), 1863 2
- Abbe, Cleveland, 1838 19161
- Butterworth, Hezekiah, 1839 19051
- Curtis, George E. (George Edward)1
- Fernow, B. E. (Bernhard Eduard), 1851 19231
- Gilbert, William S.1
- Glazier, Willard W., 1841 19051
- Harrington, Mark Walrod, 1848 19261
- Indian War Veterans And Historical Society1
- Irish, P. H.1
- Kent, F. L. (Fred Leroy), 1868 1