National Museum of Nuclear Science & History
Dunbar worked in the United States Engineer District Office.
Lillian Sexton was a switchboard operator at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Sieck worked at the 200 East Area at Hanford during the Manhattan Project.
John Costa worked at the shop in the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
J. B. Jones worked for the J.A. Jones Construction Company.
