- Oregon State College. Agricultural Experiment Station24
- Oregon State Agricultural College. Agricultural Experiment Station17
- Oregon State College. Extension Service14
- Forest Products Laboratory (U.S.)7
- Shaw, J. N. (James Niven), 1890 7
- Burrier, A. S. (Arnold Stewart), 1902 19383
- Kuhlman, G. W. (Gustav Wesley), 1894 3
- Mathewson, J. S. (James Stanley), 1889 3
- Muth, O. H. (Otto Herbert), 1906 3
- Oregon. Fish Commission3
- Price, F. E. (Frederick Earl), 1898 3
- Stephens, David E. (David Edmund), 1879 3
- Besse, Ralph S. (Ralph Stephen), 1887 2
- Browne, F. L. (Frederick Lincoln), 1895 2
- California State Chamber Of Commerce2
- Dykstra, Theodore P. (Theodore Peter), 1896 19792
- Edwards, W. D. (William Donald), 1904 2
- Garver, R. D. (Raymond Daniel)2
- Hurd, C. J. (Clarence J.), 1905 2
- Jones, J. S. (J. Shirley), 1876 2