National Museum of Nuclear Science & History
J. J. Daly worked for the Roane-Anderson Company.
Helena Calloway was a laboratory assistant in the Chemistry Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Olga M. Klicek was a laboratory technician in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
W. P. Perry worked for the Union Carbide & Carbon Corporation.
