- Onsdorff, Thomas9
- Wilster, G. H. (Gustav Hans), 18939
- Bedell, Thomas E.8
- Frazier, W. A.8
- United States. Department Of Agriculture8
- Baggett, James R.7
- Boersma, L.7
- Bouquet, A. G. B. (Arthur George Bristow), 1885 7
- Kuhlman, G. W. (Gustav Wesley), 1894 7
- Nielsen, N. I.7
- Oregon Agricultural College. Extension Service7
- Dahl, F. H.6
- Doerge, Thomas A.6
- Gorton, W. W. (William Winfield), 1907 6
- Mansour, N. S.6
- Miller, Stanley F.6
- Muth, O. H. (Otto Herbert), 1906 6
- Oregon State University. Klamath Basin Research And Extension Center6
- Roseberg, Richard J.6
- Schuster, C. E. (Carl Ephraim), 1889 6