- Becker, Manning H. (Manning Henry), 1922 15
- Oregon State University. Extension Service8
- Oregon State College. Agricultural Experiment Station7
- United States. Forest Service. Pacific Northwest Region. Thirty Year Club7
- Mumford, D. Curtis (Dwight Curtis), 1900 4
- Rohrmann, George F.4
- Hatch, Melville Harrison, 1898 3
- Hyer, Edgar A.3
- Nelson, Gene3
- Oregon Agricultural College. Alumni Association3
- Oregon State University. Agricultural Experiment Station3
- Ciuffetti, Lynda M.2
- Figueroa, Melania2
- Hermann, Richard K.2
- Klamath County (Or.)2
- Lavender, Denis P.2
- Mankaney, Aakash N.2
- Manning, Viola A.2
- Mockler, Todd C.2
- Mote, Philip W.2