National Museum of Nuclear Science & History
Mollie Sprio was a stenographer at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Walter Main worked for the United States Engineer District Office.
Bill Hartnett worked in plutonium metallurgy for the Manhattan Project at the Hanford Engineer Works from January 1943 to December 1946.
Leston Stark was a staff worker at Los Alamos during the Manhattan Project.
N. Davis worked at the 200 West Area at Hanford during the Manhattan Project.