National Museum of Nuclear Science & History
Kerr worked for Stone and Webster Engineering Corporation.
W. G. Wells worked for the United States Engineer District Office.
Okey B. Ellison was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Opaline Calhoun was a laboratory technician at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
