- Oregon State University. Extension Service89
- Youngberg, Harold Wayne, 1929 28
- Karow, Russell S.25
- Oregon State University. Agricultural Experiment Station15
- Oregon State University. Malheur Experiment Station14
- Chilcote, David O.12
- Sullivan, Dan M.10
- Young, William C. (William Clyde)9
- Fore, R. E. (Robert Estes), 1907 6
- Heinrich, Aaron6
- Vough, Lester Ray, 1944 6
- Burrill, Larry C.5
- Peachey, Ed5
- Pumphrey, F. V. (Floyd Vance)4
- Silberstein, Thomas B.4
- Dovel, Randy3
- Gingrich, Gale Allen3
- Hansen, Leroy Robert3
- Jackson, T. L. (Thomas Lloyd), 1922 3
- Mellbye, Mark Edward3