National Museum of Nuclear Science & History
Carl Neumann worked for the United States Engineer District Office.
Arnold Tiller worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Richard Ungemach served in the army at Los Alamos during the Manhattan Project.
Richard Emanatian was with the military police detachment at Los Alamos during the war. He maintained secrecy through the rest of his life, and his family only found about his involvement long after his death.
