National Museum of Nuclear Science & History
C. M. Hart worked for the Harrison Construction Company.
Frank Oppenheimer (1912-1985) was an American particle physicist. In 1941, Oppenheimer began work at the University of California Radiation Laboratory, where he was a group leader in uranium isotope separation under Ernest Lawrence.
J. R. Maddy worked for the United States Engineer District Office.
K. G. MacLeish worked for the Tennessee Eastman Corporation at the Y-12 Plant.