National Museum of Nuclear Science & History
J. S. Staples worked for the Fercleve Corporation.
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.
H. L. Nussmeyer worked for the United States Engineer District Office.
James Anderson Bridge worked at Los Alamos during the Manhattan Project.