National Museum of Nuclear Science & History
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.
Baldwin worked at the 100-F Area at Hanford during the Manhattan Project.
A. H. Frost worked for the Tennessee Eastman Corporation at the Y-12 Plant.
