National Museum of Nuclear Science & History
Wylie Bell worked for the Fercleve Corporation.
N. F. Smyth worked for the Kellex Corporation at the K-25 Plant.
Gale Young was a research associate in theoretical studies at the University of Chicago Met Lab. Before joining the Manhattan Project in 1942, Young taught mathematics and physics at Olivet College.
B. D. Johnson worked for the Southern Bell Telephone Company.