- Oregon State Agricultural College. Agricultural Experiment Station106
- Oregon State College. Agricultural Experiment Station29
- Powers, W. L. (Wilbur Louis), 18879
- Brandt, P. M. (Philip Martin), 1888 8
- Burrier, A. S. (Arnold Stewart), 1902 19388
- Jones, I. R. (Idwal Ralph), 1898 7
- Oregon State Agricultural College. Extension Service7
- Oregon State College. Extension Service7
- Potter, E. L. (Ermine Lawrence), 1884 7
- Price, F. E. (Frederick Earl), 1898 7
- Robinson, R. H. (Reginald Heber), 1886 7
- Selby, H. E. (Halbert Edgerton), 1896 7
- Besse, Ralph S. (Ralph Stephen), 1887 6
- Forest Products Laboratory (U.S.)6
- Mote, Don C. (Don Carlos), 1887 6
- Schuster, C. E. (Carl Ephraim), 1889 6
- Wiegand, Ernest Herman, 1886 6
- Wilster, G. H. (Gustav Hans), 18936
- Oregon. Fish Commission5
- Shaw, J. N. (James Niven), 1890 5