National Museum of Nuclear Science & History
Rich worked for Stone and Webster Engineering Corporation.
Madeleine Sciofo was a laboratory technician in the Health Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.
L. L. Martin worked for the Tennessee Eastman Corporation at the Y-12 Plant.
John Mihalkanin was a laboratory helper at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.