National Museum of Nuclear Science & History
A. M. Hartman worked for the Roane-Anderson Company.
Gailar worked at the K-25 plant at Oak Ridge 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.
Waldrop arrived at Oak Ridge in early 1944, directly after receiving his Army basic training. At Oak Ridge, he worked at the Y-12 plant during the Manhattan Project.
