National Museum of Nuclear Science & History
Elsie Harrington was a civilian RO Operator at Oak Ridge, Tennessee from October 1943 to February 1947.
Horan worked at the 200 West Area at Hanford during the Manhattan Project.
Richard Emanatian was with the military police detachment at Los Alamos during the war. He maintained secrecy through the rest of his life, and his family only found about his involvement long after his death.