National Museum of Nuclear Science & History
Augustus “Gus” Kinzel was an American metallurgical engineer. He graduated at age eighteen from Columbia College, and earned a PhD in metallurgical engineering from the University of Nancy in France.
R. D. Murray worked for the Tennessee Eastman Corporation at the Y-12 Plant.
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.