National Museum of Nuclear Science & History
Magdaline Penny worked for the United States Engineer District Office.
Ernest E. Wollan was a research associate at the University of Chicago’s Metallurgical Lab (“Met Lab”) during the Manhattan Project.
R. M. Ayers worked for the Roane-Anderson Company.
Thomas Guilfoyle was a member of the Military Police at the University of Chicago's Metallurgical Lab from 1943 to 1945.
