- Oregon Agricultural College. Extension Service63
- Oregon Agricultural College. Experiment Station62
- Oregon State Agricultural College. Extension Service29
- Hyslop, G. R. (George Robert), 1884 10
- Oregon State Agricultural College. Agricultural Experiment Station10
- Lovett, A. L. (Arthur Lester), 1885 19249
- Barss, H. P. (Howard Phillips), 1885 8
- Robinson, R. H. (Reginald Heber), 1886 8
- Johnson, A. Grace7
- Schuster, C. E. (Carl Ephraim), 1889 7
- Smith, Margery M.7
- Cosby, H. E. (Hubert Elmer), 1887 6
- Mote, Don C. (Don Carlos), 1887 6
- Jamison, N. C. (Neal Clement), 1890 5
- Stevens, Blanche Whittier5
- Bouquet, A. G. B. (Arthur George Bristow), 1885 4
- Fitts, Edward B.4
- Hartman, Henry, 1889 4
- Knowlton, Frank L. (Frank Lester), 1894 19404
- Lunn, A. G. (Alfred Gunn), 1883 4