National Museum of Nuclear Science & History
Sam Sparks worked for the J.A. Jones Construction Company.
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.
Physicist Norman Hilberry was Arthur H. Compton's right-hand man at the Chicago Met Lab, serving as associate director and handling administration.
Marion L. Williams served in the 603rd Air Engineering Squadron.
