National Museum of Nuclear Science & History
J. A. Douglas worked for the Roane-Anderson Company.
John Butler worked for the H. K. Ferguson Company.
Crawford Greenewalt (1902-1993) was an American chemical engineer. He was one of the managers of the Manhattan Project for DuPont.
Robert P. Matthews worked as a member of Project Alberta, the team that transported and assembled the Fat Man and Little Boy atomic bombs.
