National Museum of Nuclear Science & History
Engel worked in the United States Engineer District Office.
Walter Groeger worked in the shop at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
E. H. Marsden worked for the United States Engineer District Office.
Albert Goldstein worked in the scientific division at Los Alamos and the University of Chicago Metallurgical Lab from 1943 to 1946.
W. G. Chmielewski was a carpenter at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
