- Oregon State University. Agricultural Experiment Station64
- Oregon State College. Agricultural Experiment Station37
- Oregon State Agricultural College. Agricultural Experiment Station23
- Oregon Agricultural College. Experiment Station12
- Oregon State University. Extension Service/Marine Advisory Program9
- Edwards, John A.7
- Oregon Agricultural Experiment Station7
- Baggett, James R.6
- Condon, Edward J.6
- Oregon Agricultural College. Extension Service6
- Vaughan, Edward K.6
- Harvey, Edward Maris, 18885
- Oregon State College. Extension Service5
- Oregon State College. Federal Cooperative Extension Service5
- Frazier, W. A.4
- Harmond, Jesse E. (Jesse Edward), 1906 4
- Kolbe, Edward R.4
- Oregon. State Marine Board4
- Powers, W. L. (Wilbur Louis), 18874
- Wiegand, Ernest Herman, 1886 4