- Valde, Gary14
- Brown, Dorothy F. (Dorothy Furtick)13
- Burr, Ronald J.13
- Demory, Robert L.13
- Dewey, Jerald E.13
- Oregon State University Extension Service. Resource Conservation And Development Project Office13
- Carlson, Clinton E.12
- Pease, James R. (James Robert)12
- Southern Oregon Agricultural Experiment Station12
- Weber, Bruce A.12
- Capizzi, Joseph11
- Gaumer, Thomas F.11
- Jackson, T. L. (Thomas Lloyd), 1922 11
- Oakes, Robert D.11
- Oregon Land Conservation And Development Commission11
- Washington State University. Cooperative Extension Service11
- Westigard, Peter H.11
- Youmans, Russell C.11
- Adams, H. P. (Holyoke Purinton), 1922 10
- Brown, William G. (William Galen)10