National Museum of Nuclear Science & History
Gibson worked in the United States Engineer District Office.
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.
Fowler worked in the United States Engineer District Office.
Edward Dail worked for the Roane-Anderson Company.
Marcia Rosenthal was a biochemist at the Metallurgical Laboratory in Chicago during the Manhattan Project.