National Museum of Nuclear Science & History
William Rubinson was a chemist at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Helen R. Hughes was a laboratory technician in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
John Otto worked for Clinton Laboratories at the X-10 Reactor.
C. S. Matheny served in the 509th Headquarters and Base Services Squadron.
