Axel Leonard Melander · Edwin George Schafer · Fredreick John Sievers · George Severance · H. Hackedorn · Edmund Louis Green · George Orien Baker · Max Adams McCall · State College of Washington. Agricultural Experiment Station · Jerry Sotola · Henry F. Holtz · Henry Morris Wanser · R. P. Bean · Anthony Spuler
Jan 1924 · State College of Washington, Agricultural Experiment Station