National Museum of Nuclear Science & History
L. A. Castellanos worked for the J.A. Jones Construction Company.
Minnie (Heller) Steinberg was a junior biologist in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Arlene worked at Los Alamos during the Manhattan Project.
S. E. Briggs worked for Clinton Laboratories at the X-10 Reactor.