Creator
- Oregon State College. Federal Cooperative Extension Service6
- Bennion, N. L. (Noel Lindsay), 1903 5
- Fletcher, O. S.2
- Jackman, E. R. (Edwin Russell), 1894 19672
- Dickinson, E. M. (Ernest Milton), 1905 1
- Harper, J. A. (James Arthur), 1916 1
- Jerstad, A. C.1
- Oregon State College. Agricultural Experiment Station1