- Oregon Agricultural College. Experiment Station208
- Oregon Agricultural College. Extension Service106
- Forest Products Laboratory (U.S.)104
- Oregon Agricultural Experiment Station84
- Oregon State Agricultural College. Extension Service55
- Potter, E. L. (Ermine Lawrence), 1884 25
- Oregon State College. Extension Service23
- United States. Division Of Forestry23
- United States. Forest Service23
- Lewis, C. I. (Claude Isaac), 1880 192422
- Oregon State Agricultural College. Agricultural Experiment Station20
- Hopkins, A. D. (Andrew Delmar), 1857 194819
- Dryden, James, 1863 18
- Powers, W. L. (Wilbur Louis), 188718
- Lovett, A. L. (Arthur Lester), 1885 192416
- Shaw, G. W. (George Wright), 1864 16
- Barss, H. P. (Howard Phillips), 1885 15
- French, H. T. (Hiram Taylor), 1862 14
- Freitag, Michael13
- Oregon State Agricultural College13