National Museum of Nuclear Science & History
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.
U. Koskela worked for Clinton Laboratories at the X-10 Reactor.
McCall worked in the 100 F Area at Hanford during the Manhattan Project.