National Museum of Nuclear Science & History
Roy Schroeder was a laboratory assistant at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Grover Thompson worked for the United States Engineer District Office.
Charles O’Neil was a staff worker at Los Alamos during the Manhattan Project.
J. A. McCormick worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Robert Nobles (1917-2007) was an American physicist who worked on the Manhattan Project at the University of Chicago with Enrico Fermi.