National Museum of Nuclear Science & History
Carl Martin 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.
Harvey C. Rentschler was an American inventor and director of research at the Westinghouse Electric Corporation Lamp Plant in Bloomfield, New Jersey.
Hankal worked for Stone and Webster Engineering Corporation.