- Forest Products Laboratory (U.S.)120
- Oregon State Agricultural College. Agricultural Experiment Station112
- Oregon State College. Agricultural Experiment Station56
- Oregon State Agricultural College. Extension Service45
- Oregon State College. Federal Cooperative Extension Service41
- Pacific Northwest Forest Experiment Station (Portland, Or.)30
- Oregon State College. Extension Service25
- Brandt, P. M. (Philip Martin), 1888 12
- Browne, F. L. (Frederick Lincoln), 1895 12
- Oregon Federal Writers' Project12
- Oregon Historical Records Survey12
- Selby, H. E. (Halbert Edgerton), 1896 12
- Powers, W. L. (Wilbur Louis), 188711
- Stamm, Alfred J. (Alfred Joaquim), 1897 11
- Jackman, E. R. (Edwin Russell), 1894 10
- Pacific Northwest Forest And Range Experiment Station (Portland, Or.)10
- Price, F. E. (Frederick Earl), 1898 10
- Buell, Edward D.9
- Burrier, A. S. (Arnold Stewart), 1902 19389
- Mote, Don C. (Don Carlos), 1887 9