National Museum of Nuclear Science & History
J. M. Brown worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Helene Stark was a laboratory technician in the Health Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.
M. E. Gregson worked for the Roane-Anderson Company.
Thomas Guilfoyle was a member of the Military Police at the University of Chicago's Metallurgical Lab from 1943 to 1945.
