National Museum of Nuclear Science & History
Richard Ehrlich worked at Los Alamos in the Theoretical Physics Division, during the Manhattan Project.
Charles W. Sweeney served as a major in the 393rd Bombardment Squadron. He was regularly assigned to the Great Artiste as the aircraft commander and participated in the mission to bomb Hiroshima as co-pilot of the Great Artiste.
John P. Engel served in the 1st Ordnance Squadron.