National Museum of Nuclear Science & History
Grace Hardin worked for the J.A. Jones Construction Company.
John Costa worked at the shop in the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Charles E. Frohn served in the 1027th Air Material Squadron.
Douglas Rouse worked for the United States Engineer District Office.
W. B. Humes worked for the Edenfield Electric Company.
