National Museum of Nuclear Science & History
Helen Thomson was a techinician in the Chemistry Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Alfred Zuk was a member of the Special Engineer Detachment assigned to the 509th Composite Group in Wendover, Utah from 1944 to 1945.
G. Robert Gunther-Mohr joined the Manhattan Project in 1944. Mohr worked on the top secret polonium trigger being developed for the plutonium bomb at the Monsanto Chemical Company in Dayton, Ohio.
