National Museum of Nuclear Science & History
P. D. Simpson worked for the Poe Piping & Heating Company.
Thomas Brown worked for the Tennessee Eastman Corporation at the Y-12 Plant.
George W. Marquardt served as a captain in the 393rd Bombardment Squadron. Although he was regularly assigned to the Up An’ Atom, he flew in the mission to bomb Hiroshima as the aircraft commander of the Necessary Evil.
