- Oregon State University50
- Lane County Historical Society (Or.)28
- Pacific Northwest Forest And Range Experiment Station (Portland, Or.)26
- Oregon State University. Agricultural Experiment Station19
- Thompson, B. G. (Benjamin Garrison), 1891 16
- Oregon State University. Extension Service14
- Et Al.11
- Oregon State College. Federal Cooperative Extension Service11
- Webster, Janet G.9
- Baarda, Benjamin I.8
- Gilmont, Susan8
- Halpern, Benjamin S.8
- Laurel, Benjamin J.8
- Moravets, F. L.8
- Mote, Don C. (Don Carlos), 1887 8
- Oregon State College. Agricultural Experiment Station8
- Oregon State University. College Of Forestry8
- Sikora, Aleksandra E.8
- Spada, Benjamin8
- Western Dry Kiln Clubs8