National Museum of Nuclear Science & History
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.
Winston Dabney served in the U.S. Army Corp of Engineers and worked on the Manhattan Project from 1941 until 1945 while he was stationed at Los Alamos.
J. J. DiLeonardo served in the 390th Air Service Group.