National Museum of Nuclear Science & History
Jas Ellis worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Leighton B. Ewell served in the 393rd Bombardment Squadron.
Robert E. Thornton served in the 1027th Air Material Squadron.
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.