Creator
- Oregon Agricultural College. Experiment Station12
- Oregon State Agricultural College. Experiment Station3
- Oregon Agricultural Experiment Station2
- Oregon State Agricultural College. Agricultural Experiment Station2
- Brown, Gordon G. (Gordon George), 1887 1
- Childs, Leroy, 1888 1
- Grimm, E. (Edgar)1
- Hood River Branch Experiment Station1
- Lake, E. R. (Edward Ralph)1
- Lewis, C. I. (Claude Isaac), 1880 19241
- Portland Chamber Of Commerce (Or.). Land Settlement Dept1