National Museum of Nuclear Science & History
Manning 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.
Fischer worked in the United States Engineer District Office.
Louis Henry Hempelmann (1914-1993) was Director of the Health Group at the Los Alamos site of the Manhattan Project.
James F. “Jim” Nolan was a Captain in the US Army Medical Corps, the Chief Medical Officer for the Los Alamos site of the Manhattan Project, and a Special Consultant to Project Alberta on Tinian Island.