National Museum of Nuclear Science & History
Frederick worked at Los Alamos during the Manhattan Project.
William Hawkins worked for the Roane-Anderson Company.
L. M. Leach worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Marion Edward Cieslicki was an Polish American metallurgist who worked on the Manhattan Project from 1944 to 1946 at the University of Chicago and at Los Alamos.