National Museum of Nuclear Science & History
Walter Johnson worked for the United States Engineer District Office.
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.
Lev Vladimirovich Altshuler (Лев Владимирович Альтшулер; 1913-2003) was a Soviet physicist.
Whitney G. Roland served in the 603rd Air Engineering Squadron.