National Museum of Nuclear Science & History
E. H. McDaniel worked for the Edenfield Electric Company.
E. R. Page worked for the United States Engineer District Office.
MacDonald was a member of the Instrument Section at the University of Chicago’s Metallurgical Laboratory.
J. T. King served in the 509th Headquarters and Base Services Squadron.
Fredrick “Fred” D. Johnson was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
