National Museum of Nuclear Science & History
A. M. Hartman worked for the Roane-Anderson Company.
Mary E. Parrish was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
W. E. Miller worked for the Edenfield Electric Company.
John Horan worked for the United States Engineer District Office.
Hazel Williams worked for the United States Engineer District Office.
