National Museum of Nuclear Science & History
Frances Cianciolo worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Stanley Liebert was a machinist in the SAM Laboratory at Columbia University between 1944 and 1945.
M. O. Swanson worked for the United States Engineer District Office.
Jack Hefner joined the Manhattan Project at Oak Ridge in 1943. Hefner was a reactor engineer and helped supervise the construction of the X-10 Graphite Reactor.