National Museum of Nuclear Science & History
Rufus Addison worked for the Edenfield Electric Company.
W. W. W. Vivian worked for the United States Engineer District Office.
Ralph Nobles was one of three brothers to work on the Manhattan Project. He and his brother William worked at Los Alamos, while brother Robert was at the University of Chicago’s Metallurgical Laboratory.
Laura A. Marshall was a laboratory technician in the Health Division at the University of Chicago Met Lab.