- Oregon State College. Agricultural Experiment Station207
- Forest Products Laboratory (U.S.)126
- Oregon State Agricultural College. Agricultural Experiment Station124
- Oregon State Agricultural College. Extension Service99
- Oregon State College. Federal Cooperative Extension Service76
- Bouquet, A. G. B. (Arthur George Bristow), 1885 43
- Mote, Don C. (Don Carlos), 1887 31
- Pacific Northwest Forest Experiment Station (Portland, Or.)31
- Oregon State College. Extension Service29
- Powers, W. L. (Wilbur Louis), 188717
- Cowgill, Helen Julia16
- Mcwhorter, Frank, 1896 198516
- Zeller, S. M. (Sanford Myron), 1885 194815
- Burrier, A. S. (Arnold Stewart), 1902 193814
- Jones, I. R. (Idwal Ralph), 1898 14
- Schuster, C. E. (Carl Ephraim), 1889 13
- Selby, H. E. (Halbert Edgerton), 1896 13
- Brandt, P. M. (Philip Martin), 1888 12
- Browne, F. L. (Frederick Lincoln), 1895 12
- Mcwhorter, O. T.12