National Museum of Nuclear Science & History
T. H. Dunigan worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Jean Marley O’Leary began working for General Leslie Groves in June 1941, when she was hired as his personal secretary.
Dr. Joseph Katz was a chemist at Argonne National Laboratory at the Metallurgical Lab in Chicago. Katz was a part of a team that studied ways to make the diffusion of U-235 to U-238.