National Museum of Nuclear Science & History
E. H. Halbrook worked for the J.A. Jones Construction Company.
Campbell worked for Stone and Webster Engineering Corporation.
Glenn Hupp worked for the Roane-Anderson Company.
Alan Vorwald was a mathematician in the Special Engineer Detachment at Los Alamos. Vorwald was a part of the theoretical physics division under Hans Bethe and Richard Feynman, specializing in the computing department.