National Museum of Nuclear Science & History
Guy C. Bradley served in the 603rd Air Engineering Squadron.
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.
Fermin Vigil was a staff worker at Los Alamos during the Manhattan Project.
Clarence Signaigo was a laboratory helper at the Metallurgical Laboratory in Chicago during the Manhattan Project.