National Museum of Nuclear Science & History
Stanley Liebert was a machinist in the SAM Laboratory at Columbia University between 1944 and 1945.
Lt. Col. Clyde Mathews was a Public Relations Officer during the Manhattan Project. He worked for Lt.
A. J. Schwertfeger worked for Clinton Laboratories at the X-10 Reactor.
Mary Kelly was a stenographer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.