National Museum of Nuclear Science & History
Leslie Seward worked for the United States Engineer District Office.
Hughs worked at the 200 West Area at Hanford during the Manhattan Project.
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.
C. O. Kenny worked for the Tennessee Eastman Corporation at the Y-12 Plant.
