National Museum of Nuclear Science & History
O'Brien worked for Stone and Webster Engineering 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.
Roman Vigil was a staff worker at Los Alamos during the Manhattan Project.
J. W. Litton worked for the Tennessee Eastman Corporation at the Y-12 Plant.
