National Museum of Nuclear Science & History
J. J. Fritz worked for the Union Carbide & Carbon Corporation.
Eugene F. Szczepanik served in the 1027th Air Material Squadron.
Joyce M. Hopkins was a research assistant in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
O’Connell worked in the 200 West Area at Hanford during the Manhattan Project.