National Museum of Nuclear Science & History
Gebhardt worked for Stone and Webster Engineering Corporation.
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.
Matoske worked in the 300 Area at Hanford during the Manhattan Project.
John L. Cheeseman served in the 1027th Air Material Squadron.
