National Museum of Nuclear Science & History
R. H. Martin worked for the United States Engineer District Office.
Bergen McCormick worked for the J.A. Jones Construction Company.
Jas Howe 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.
