National Museum of Nuclear Science & History
Tom Mulcahey was a staff worker at Los Alamos during the Manhattan Project.
Margaret Schelberg was a nurse at Los Alamos during the Manhattan Project. She was married to physicist Arthur Schelberg.
Arthur Widmer worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Helen Thomson was a techinician in the Chemistry Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.
