National Museum of Nuclear Science & History
C. W. Cryer worked for the Midwest Piping and Supply Company.
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.
Joseph Papineau served in the Army at Los Alamos during the Manhattan Project.
Philip G. Koontz was a research associate at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
