- Oregon State University. Extension Service7
- Brandt, P. M. (Philip Martin), 1888 5
- Gamroth, Michael J.5
- Oregon State College. Agricultural Experiment Station4
- Adams, H. P. (Holyoke Purinton), 1922 3
- Burrier, A. S. (Arnold Stewart), 1902 19383
- Jones, I. R. (Idwal Ralph), 1898 3
- Oregon State Agricultural College. Agricultural Experiment Station3
- Selby, H. E. (Halbert Edgerton), 1896 3
- Buyserie, Annette C.2
- Haag, J. R. (Joseph Roy), 1896 2
- Berry, Pete1
- Bushnell, Robert B.1
- Cannon, Lynn E.1
- Carroll, Diane J.1
- Claypool, Donald W., 1929 1
- Dahl, Geoffrey Eliot1
- Downing, Troy (Troy Woerner)1
- Gangwer, Michael I.1
- Hannaway, David B.1