National Museum of Nuclear Science & History
Wuethrich worked for Stone and Webster Engineering Corporation.
Paul Metro was a member of the 393rd Bomb Squadron in the 509th Composite Group stationed in Wendover, Utah and on Tinian Island in the Pacific.
Robert JS Brown was a member of the Special Engineer Detachment at Los Alamos. He worked under Don Hornig on the electrical aspects of detonation for the plutonium bomb.
Henry Wigen worked for the United States Engineer District Office.