- Oregon State University. Department Of Horticulture37
- Oregon State University. Extension Service19
- Oregon State University. Agricultural Experiment Station6
- Crabtree, Garvin Dudley5
- Oregon State College. Agricultural Experiment Station5
- Freed, Virgil H. (Virgil Haven), 1919 3
- Mack, H. J.3
- Peachey, Ed3
- Warren, Rex3
- Zimmerman, Martin (Martin Joseph)3
- Altland, James Elmer, 1973 2
- Baggett, James R.2
- Burr, Ronald J.2
- Crowell, H. H.2
- Duncan, Andrew A.2
- Frazier, W. A. (William Allen), 1908 2
- Jackson, T. L. (Thomas Lloyd), 1922 2
- Peachey, Ronald Edward2
- Akhavein, Ali Asghar, 1931 1
- Bayer, David E.1