D. J. Caffrey / E. H. Siegler / Erastus Newton Bates / Frank Hurlbut Chittenden / Freeman Earl Parsons / H. P. Gould / Howard Ross Tolley / Jacob Allen Clark / Le Roy August Reynoldson / Martin Reese Cooper / Robert Henry Black / Roy Elliott Campbell / Russell Arthur Oakley / Thomas Arrington Huntington Miller / United States. Bureau of Plant Industry / William Allen Orton / William Jasper Spillman / Charles Roy Haller / Fred Campbell Meier / Harvey Leroy Westover | 