National Museum of Nuclear Science & History
Sayers worked for Stone and Webster Engineering Corporation.
Halm worked at the 300 Area at Hanford during the Manhattan Project.
Lomie F. Caho was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Stanley Liebert was a machinist in the SAM Laboratory at Columbia University between 1944 and 1945.
