National Museum of Nuclear Science & History
J. R. Evans worked for the William A. Pope Company.
Evelyn Sargent was a staff worker at Los Alamos during the Manhattan Project.
James King worked at the Y-12 Plant in Oak Ridge, Tennessee, in the uranium purification process from February 1944 to February 1947.
C. J. Klein worked for Clinton Laboratories at the X-10 Reactor.