National Museum of Nuclear Science & History
C. W. Robert worked for the H. K. Ferguson Company.
Babcock worked in the United States Engineer District.
Hugh “Brad” Bradner was a physicist at Los Alamos during the Manhattan Project.
Robert F. Christy (1916-2012) was a Canadian-American theoretical physicist Christy’s doctoral advisor at the University of California, Berkeley was Robert Oppenheimer, but Christy’s initial involvement with the Manhattan Project came at the Metallurgical Lab at the University of Chicago.