Creator
- Oregon State Agricultural College. Agricultural Experiment Station2
- Bradley, C. E. (Charles Edward), 1874 1
- Brandt, P. M. (Philip Martin), 1888 1
- Jackson, Harold William1
- Jones, I. R. (Idwal Ralph), 1898 1
- Oregon Agricultural College. Experiment Station1
- Selby, H. E. (Halbert Edgerton), 1896 1
- Withycombe, James, 1854 1