National Museum of Nuclear Science & History
J. M. Russell worked for the Roane-Anderson Company.
Andrew G. Demo served in the 393rd Bombardment Squadron.
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.
Smoot worked at the 200 West Area at Hanford during the Manhattan Project.