National Museum of Nuclear Science & History
Pef worked for Stone and Webster Engineering Corporation.
Hilda Uchiyamada was a research assistant at the Metallurgical Laboratory in Chicago during the Manhattan Project.
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.
Byron Johnson worked for the Tennessee Eastman Corporation at the Y-12 Plant.
