Creator
- Oregon State Agricultural College. Extension Service3
- Mckay, M. B. (Marion Bertice), 1887 2
- Oregon Agricultural College. Extension Service2
- Oregon State University. Cooperative Extension Service2
- Carpenter, W. S.1
- Dobie, Chad1
- Hyslop, G. R. (George Robert), 1884 1
- Jackman, E. R. (Edwin Russell), 1894 19671
- Schreiber, Alan S.1