National Museum of Nuclear Science & History
C. M. Hart worked for the Harrison Construction Company.
Howard Parsons was an American physicist. Parsons was born in Chicago in 1920. He receieved a B.S. from the University of Chicago, and shortly afterwards was hired to work on the Manhattan Project as a research assistant at the Chicago Met Lab.
Charles Rea worked for the United States Engineer District Office.
V. N. Hacker worked for the J.A. Jones Construction Company.
