National Museum of Nuclear Science & History
W. L. Richardson worked for the Union Carbide & Carbon Corporation.
R. G. Humphries worked for the United States Engineer District Office.
Eleanor Eekwald was a stenographer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Lorraine Barbic was a technical worker in the Chemical Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.
