- Withycombe, Robert, 1880 12
- Potter, E. L. (Ermine Lawrence), 1884 11
- Oregon Agricultural College. Experiment Station8
- Oregon State Agricultural College. Agricultural Experiment Station4
- Edwards, F. M. (Floyd Marven), 1899 2
- Shattuck, Obil, 1885 1
- Stephens, David E. (David Edmund), 1879 1