National Museum of Nuclear Science & History
L. E. Johnston worked for the United States Engineer District Office.
Edward worked at Los Alamos 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.
G. C. DeCroes worked for the Tennessee Eastman Corporation at the Y-12 Plant.
