National Museum of Nuclear Science & History
W. A. Cone worked for the J.A. Jones Construction Company.
M. S. Headley worked for the J.A. Jones Construction Company.
Aquilla Parsons was a technician at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Gordon worked in the United States Engineer District Office.
C. W. Gray worked for the Edenfield Electric Company.