National Museum of Nuclear Science & History
Emma Tolmach was a technician in the Chemistry Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Dorothy Isgett was a civilian worker at Oak Ridge Tennessee from 1943 to 1946.
Robert JS Brown was a member of the Special Engineer Detachment at Los Alamos. He worked under Don Hornig on the electrical aspects of detonation for the plutonium bomb.