National Museum of Nuclear Science & History
Fred Bruntz worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Cloyd Marvin had been drafted into the Army, interrupting his education at Haverford University, in 1943 and joined the Special Engineer Detachment as a technician third grade, later being assigned to Los Alamos National Labs in 1947.
Leo P. Hassen was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
H. T. Ledford worked for the Tennessee Eastman Corporation at the Y-12 Plant.
