National Museum of Nuclear Science & History
N. F. Hanke worked for Clinton Laboratories at the X-10 Reactor.
Davis worked for Stone and Webster Engineering Corporation.
Riser worked at the 200 West Area at Hanford 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.
