National Museum of Nuclear Science & History
Mason worked in the 300 Area at Hanford during the Manhattan Project.
Theodore “Ted” Hall (1925-1999) was an American physicist and an atomic spy who passed along detailed information about the implosion-type “Fat Man” bomb and several processes for purifying plutonium to the Soviet Union.
Betty Tellefson was a staff worker at Los Alamos during the Manhattan Project.
J. G. McNally worked for the Tennessee Eastman Corporation at the Y-12 Plant.