George M. Darrow
United States. Agricultural Research Service
Harold E. Thomas
Ercole Giap Parini
Bertelsen, Diane R.
Harland Padfield
Carl H. Shanks
Diane R Bertelsen
Ernest Feder
Carleton Cecil Dennis
United States. Agricultural Research Service. Northeastern Region
United States
George F. Waldo
E. Hofer
Esther Marie Colvin
United States. Department of Agriculture. Radio Service
Beatrice M. Bain
M. E. Cravens