- Forest Products Laboratory (U.S.)120
- Oregon State Agricultural College. Agricultural Experiment Station116
- Oregon State College. Agricultural Experiment Station102
- Oregon State Agricultural College. Extension Service70
- Oregon State College. Federal Cooperative Extension Service47
- Bouquet, A. G. B. (Arthur George Bristow), 1885 32
- Pacific Northwest Forest Experiment Station (Portland, Or.)28
- Oregon State College. Extension Service27
- Mote, Don C. (Don Carlos), 1887 15
- Powers, W. L. (Wilbur Louis), 188715
- Burrier, A. S. (Arnold Stewart), 1902 193812
- Cowgill, Helen Julia12
- Browne, F. L. (Frederick Lincoln), 1895 11
- Schuster, C. E. (Carl Ephraim), 1889 11
- Selby, H. E. (Halbert Edgerton), 1896 11
- Stamm, Alfred J. (Alfred Joaquim), 1897 11
- Oregon Federal Writers' Project10
- Oregon Historical Records Survey10
- Pacific Northwest Forest And Range Experiment Station (Portland, Or.)10
- Price, F. E. (Frederick Earl), 1898 10