National Museum of Nuclear Science & History
Gaffney worked in the United States Engineer District Office.
Ivan H. Stewart served in the 393rd Bombardment Squadron.
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.
Tony Quintana was a staff worker at Los Alamos during the Manhattan Project.
H. V. Appen worked for the J.A. Jones Construction Company.
