- Oregon Agricultural College. Experiment Station6
- Oregon State College. Extension Service5
- Oregon State Agricultural College. Agricultural Experiment Station3
- Brown, Gordon G. (Gordon George), 1887 2
- Harvey, Edward Maris, 18882
- Oregon Agricultural College. Extension Service2
- Oregon State Agricultural College. Extension Service2
- Pinchot, Gifford, 1865 19462
- Reimer, F. C. (Frank Charles), 1881 2
- Automobile Club Of Oregon1
- Averill, E. F.1
- Brandeburg, George O.1
- Carey, Charles Henry1
- Cass, William Avery1
- Chamberlin, W. J. (Willard Joseph), 1890 1
- Columbia County (Or.)1
- Cowgill, Helen Julia1
- Dreesen, W. H. (William Henry), 1880 1
- Gain, Mercy Jane1
- Gatlin, George Oury, 1888 19341