National Museum of Nuclear Science & History
J. M. Ryan worked for the United States Engineer District Office.
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.
Charles Toney worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Francis X. Dolan was a sergeant in the 393rd Bombardment Squadron. He served as the radio operator of the Necessary Evil, but flew in the Big Stink during the Nagasaki Mission.