National Museum of Nuclear Science & History
M. E. Brennan worked for the Watson-Flagg Engineering Company.
Laura A. Marshall was a laboratory technician in the Health Division at the University of Chicago Met Lab.
W. H. McWhirter worked for the J.A. Jones Construction Company.
Jack Howard Smith was an American physicist. Smith was a Ph.D. student under Hans Bethe at Cornell University when Bethe was tapped by J.