- Upper Willamette Resource Conservation And Development Project29
- Oregon State University Extension Service. Resource Conservation And Development Project Office11
- Oregon State University. Agricultural Experiment Station10
- United States. Soil Conservation Service10
- Upper Willamette Resource Conservation And Development Area5
- Boersma, L.4
- Pomerening, James A.3
- Simonson, Gerald Herman, 1927 3
- Thomas, Byron R.3
- Jackson, T. L. (Thomas Lloyd), 1922 2
- Klock, Glen O.2
- Mack, H. J. (Harry John), 1926 2
- Balster, Clifford A.1
- Besse, Ralph S. (Ralph Stephen), 1887 1
- Brooks, R. H.1
- Calhoun, Wheeler, 1916 20031
- Castle, Emery N.1
- Cheney, H. B.1
- Foote, W. H. (Wilson Hoover), 1920 1
- Istok, Jonathan D.1