Creator
- Barss, H. P. (Howard Phillips), 1885 1
- Cordley, A. B. (Arthur Burton), 1864 19361
- Cowling, Ellis Brevier, 1932 1
- Hawkins, Robert E.1
- King, David1
- Oregon Agricultural College. Experiment Station1
- Oregon Agricultural Experiment Station1
- Oregon State College. Agricultural Experiment Station1
- Posey, Gilbert Bradley1
- Wang, Chuang1
- Wittig, Hans P. P.1
- Zeller, S. M. (Sanford Myron), 1885 19481