National Museum of Nuclear Science & History
H. A. McFadden worked for the Roane-Anderson Company.
Conen served as a first lieutenant in the 393rd Bombardment Squadron. He participated in the mission to bomb Hiroshima as a flight engineer for the Top Secret.
George Royster was a civilian physicist working at the X-10 graphite reactor in Oak Ridge, Tennessee.
Brockman worked at Los Alamos during the Manhattan Project.
