National Museum of Nuclear Science & History
O'Brien worked for Stone and Webster Engineering Corporation.
Acie Singleton was a laborator helper at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Willie Anderson worked in the shop at the Metallurgical Laboratory in Chicago during the Manhattan Project.
J. P. Clark worked for the Roane-Anderson Company.
James H. Bradley served in the 1st Ordnance Squadron.
