National Museum of Nuclear Science & History
M. K. Walker worked for the Fercleve Corporation.
Helen Thomson was a techinician in the Chemistry Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.
P. S. Vincent worked for Clinton Laboratories at the X-10 Reactor.
Howard C. Bush was the base camp commander for Trinity Site.
David Schauffler was a staff worker at Los Alamos during the Manhattan Project.