National Museum of Nuclear Science & History
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.
Steve Buckingham worked as a chemist at the Hanford site beginning in 1947. He understood well how the B Reactor worked and also worked with the T-Plant.
C. E. Twigg worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Frankie R. Johnson served in the 393rd Bombardment Squadron.