Creator
- Mcdermid, J. T. (Jack Thomas)4
- Jackson, T. L. (Thomas Lloyd), 1922 3
- Besse, Ralph S. (Ralph Stephen), 1887 1
- Bullock, Richard M. (Richard Melvin), 1918 1
- Gardner, Ernest Hugh1
- Lighty, Willard1
- Oregon State University. Agricultural Experiment Station1
- Rampton, H. H. (Henry Hardy), 1904 1
- Sheets, W. A. (Willis Arden)1
- Smith, R. L.1
- Werth, H.1