Creator
- Oregon State Agricultural College. Agricultural Experiment Station13
- Powers, W. L. (Wilbur Louis), 1887[remove]13
- Ruzek, C. V. (Charles Vladis), 1887 19683
- Stephenson, R. E. (Roscoe Elmo), 1885 2
- Besse, Ralph S. (Ralph Stephen), 1887 1
- Richards, D. E. (Dale Everette), 1892 1
- Ruzek, C. V. (Charles Vladis), 1887 1
- Rygg, G. L.1
- Schuster, C. E. (Carl Ephraim), 1889 1
- Torgerson, E. F. (Edward Fritchoff), 1888 1