National Museum of Nuclear Science & History
Hollis worked for Stone and Webster Engineering Corporation.
Joseph Iorio served in the 1st Ordnance Squadron.
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.
Joseph H. Heartberg was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
