National Museum of Nuclear Science & History
Hugh Barton was a research assistant at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Bierowski worked for Stone and Webster Engineering Corporation.
William (W.) Gregory Marley was a British physicist and photography expert, who was part of the British Mission to Los Alamos during the Manhattan Project.
LaVerna C. McKenzie was a laboratory technician in the Health Division at the University of Chicago Met Lab.