National Museum of Nuclear Science & History
Roy Stipp worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Richard Gaul was fresh out of high school when he arrived in Los Alamos. He was a member of the Provisional Engineer Detachment (PED).
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.
Delmar Russell worked for the United States Engineer District Office. He arrived in February 1943.