James T. Hansen

Richard Emanatian

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.

Mary McCormick

Mary McCormick was a secretary at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

L. D. Chellis

Chellis worked for Stone and Webster Engineering Corporation.

Walter Prince