National Museum of Nuclear Science & History
James C. Hart was a DuPont chemist and member of the health physics group during the Manhattan Project.
R. T. Bartnett worked for the Roane-Anderson Company.
C. W. Gray worked for the Edenfield Electric Company.
John Jackson was a member of the 393rd Bomber Squadron in the 509th Composite Group stationed in Wendover, Utah, and later on Tinian Island in the Pacific.