- Oregon State College. Agricultural Experiment Station205
- Oregon State Agricultural College. Agricultural Experiment Station96
- Oregon State Agricultural College. Extension Service71
- Oregon State College. Federal Cooperative Extension Service56
- Forest Products Laboratory (U.S.)49
- Bouquet, A. G. B. (Arthur George Bristow), 1885 42
- Mote, Don C. (Don Carlos), 1887 27
- Oregon Federal Writers' Project20
- Oregon Historical Records Survey20
- Powers, W. L. (Wilbur Louis), 188717
- Cowgill, Helen Julia16
- Mcwhorter, Frank, 1896 198516
- Oregon State College. Extension Service16
- Burrier, A. S. (Arnold Stewart), 1902 193812
- Pacific Northwest Forest Experiment Station (Portland, Or.)12
- Selby, H. E. (Halbert Edgerton), 1896 12
- Breithaupt, L. R. (Le Roy), 1886 11
- Jones, I. R. (Idwal Ralph), 1898 11
- Wiegand, Ernest Herman, 1886 11
- Schuster, C. E. (Carl Ephraim), 1889 10