National Museum of Nuclear Science & History
George Michell worked for the Tennessee Eastman Corporation at the Y-12 Plant.
James C. Hart was a DuPont chemist and member of the health physics group during the Manhattan Project.
Holmes worked at the 300 Area at Hanford during the Manhattan Project.
Walter M. Longfelt was a laborer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
