- Oregon State University50
- Lane County Historical Society (Or.)28
- Pacific Northwest Forest And Range Experiment Station (Portland, Or.)26
- Oregon State University. Agricultural Experiment Station18
- Oregon State University. Extension Service14
- Et Al.12
- Halpern, Benjamin S.9
- Webster, Janet G.9
- Gilmont, Susan8
- Moravets, F. L.8
- Spada, Benjamin8
- Hatfield Marine Science Center7
- Laurel, Benjamin J.7
- Markland, Mary7
- Oregon Agricultural College7
- Oregon State College. Federal Cooperative Extension Service7
- Oregon State University. Forest Research Laboratory7
- Oregon. State Game Commission7
- Thompson, B. G. (Benjamin Garrison), 1891 7
- United States. Forest Service7