National Museum of Nuclear Science & History
Bill Hartnett worked in plutonium metallurgy for the Manhattan Project at the Hanford Engineer Works from January 1943 to December 1946.
Vivian Stark was a laboratory technician in the Health Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.
G. W. Toncray worked for the Tennessee Eastman Corporation at the Y-12 Plant.
