National Museum of Nuclear Science & History
Joseph Kouba was a janitor at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Crawford Greenewalt (1902-1993) was an American chemical engineer. He was one of the managers of the Manhattan Project for DuPont.
DeNagy worked in the United States Engineer District Office.
J. H. Schlosser worked for Clinton Laboratories at the X-10 Reactor.
John E. Wirth worked for Clinton Laboratories at the X-10 Reactor.