Creator
- Brandt, P. M. (Philip Martin), 1888 5
- Burrier, A. S. (Arnold Stewart), 1902 19383
- Jones, I. R. (Idwal Ralph), 1898 3
- Oregon State Agricultural College. Agricultural Experiment Station3
- Oregon State College. Agricultural Experiment Station3
- Selby, H. E. (Halbert Edgerton), 1896 3
- Haag, J. R. (Joseph Roy), 1896 2
- Kuhlman, G. W. (Gustav Wesley), 1894 1