- Powers, W. L. (Wilbur Louis), 188751
- Oregon State College. Agricultural Experiment Station26
- Oregon Agricultural College. Experiment Station17
- Oregon State Agricultural College. Agricultural Experiment Station15
- Bouquet, A. G. B. (Arthur George Bristow), 1885 6
- Powers, W. L. (Wilbur Louis), B. 18876
- Torgerson, E. F. (Edward Fritchoff), 1888 6
- Johnston, W. W. (William Waters), 1896 4
- Ruzek, C. V. (Charles Vladis), 1887 19684
- Stephenson, R. E. (Roscoe Elmo), 1885 4
- Dannen, E. V. (Eugene Verle), 1914 3
- Hill, William W.3
- Oregon State University. Extension Service3
- Stone, David L. (David Louis)3
- Alford, Matthew H.2
- Forest Products Laboratory (U.S.)2
- Mackinnon, Jennifer A.2
- Nash, Jonathan D.2
- Pinkel, Robert2
- Ruzek, C. V. (Charles Vladis), 1887 2