E. J. Newcomer
United States Department of Agriculture
C. C. Cassil
FMC (United States)
C. C. Alexander
Howard University
J. C. Maitlen
Educational Service District 105
M. H. Brunson
Beneficial Designs (United States)
L. M. McDonough
Johns Hopkins University
M. A. Yothers
Bureau of Plant Industry
F. W. Cahlson
Bureau of Plant Industry
B. A. Butt
Shepherd University
W. E. Westlake
University of Dundee
Bureau of Plant Industry
United States Department of Agriculture
Educational Service District 105
Agricultural Research Service
Institute of Entomology
Washington State University
University of California, Riverside
Johns Hopkins University
Parks and Wildlife Commission of the Northern Territory
FMC (United States)