Robert L. Hostetler

Mark S. Fred

Mark Fred was a research assistant in the chemistry division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

W. M. Whitaker

W. M. Whitaker served in the 390th Air Service Group.

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.

L. E. Gatten