George R. Holdren

Nathan C. Safferstein

Nathan Safferstein (1921-2013) was an American counterintelligence agent during the Manhattan Project.

Harry H. Sadler

Harry Sadler worked for the A. S. Schulman Electric Company.

William J. Metters

James E. Barton

James Barton worked as a carpenter for the DuPont Company at the Hanford, Washington site. He never knew he was working on the atomic bomb until after it was dropped in Japan.