National Museum of Nuclear Science & History
Joseph Ryan was a staff worker at Los Alamos during the Manhattan Project.
John Henry Manley (1907-1990) was an American physicist. Manley worked on the Manhattan Project almost from its beginning, starting at the Metallurgical Lab at the University of Chicago.
Gatlin worked in the United States Engineer District Office.
Harry Kamack graduated from Georgia Tech with a degree in chemical engineering, and then went to work for the DuPont Company in late 1942.
