National Museum of Nuclear Science & History
Butscher worked for Stone and Webster Engineering Corporation.
John Russell worked for the United States Engineer District Office.
Malvena Gilman was a stenographer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
R. W. Hamer worked for the Roane-Anderson Company.
R. H. McCormick worked for the Roane-Anderson Company.