National Museum of Nuclear Science & History
M. G. Sonner worked for the J.A. Jones Construction Company.
Mark Fred was a research assistant in the chemistry division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Thomas P. Hill, III served in the 393rd Bombardment Squadron.
Minnie M. Daniels was a laboratory technician and assistant in the Chemistry Division at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
