National Museum of Nuclear Science & History
Florence Morrison worked for the United States Engineer District Office.
Ruth Hoffberg was a stenographer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
F. D. Ethridge, Jr. worked for Clinton Laboratories at the X-10 Reactor.
Lawrence B. Magnusson was a research associate at the Metallurgical Laboratory at the University of Chicago.
