- Oregon Agricultural College6
- Hatch, Melville Harrison, 1898 5
- Gilmont, Susan4
- Markland, Mary4
- Oregon State University4
- Webster, Janet G.4
- Oregon Agricultural College. Alumni Association3
- Oregon State University. Agricultural Experiment Station3
- United States. Forest Service3
- Zybach, Bob3
- Downey, Tom2
- Hermann, Richard K.2
- Lavender, Denis P.2
- Leasher, Evelyn M.2
- Oregon. Fish Commission2
- Rilatos, Darin2
- Sondenaa, Annette2
- Stern, Theodore2
- United States. Environmental Protection Agency. Water Quality Office2
- [Author Not Identified]1