National Museum of Nuclear Science & History
Francis Oley worked on the Manhattan Project for the Kellex Corporation. The son of Polish immigrants, Oley grew up in Brooklyn, New York.
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.
Born in 1903 in Baltimore, Mackie studied civil engineering at Union College in Schenectady, New York.
Albert D. Alexander served in the 1st Ordnance Squadron.
