National Museum of Nuclear Science & History
S. C. Barnett worked for the Union Carbide & Carbon Corporation.
Clifford Nilsson served in the Special Engineer Detatchment (SED) at Los Alamos during the Manhattan Project.
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.
Chellberg worked for Stone and Webster Engineering Corporation.