National Museum of Nuclear Science & History
Williams worked for Stone and Webster Engineering Corporation.
Francis M. Blake worked for the Union Carbide & Carbon Corporation.
Carl C. Mason served as a private first class in the 393rd Bombardment Squadron. He was a member of the ground crew regularly assigned to the B-29 Up An’ Atom.
John J. Norton was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
