National Museum of Nuclear Science & History
R. H. Ball worked for the Tennessee Eastman Corporation at the Y-12 Plant.
E. F. Ryan worked for the United States Engineer District Office.
John worked at Los Alamos during the Manhattan Project, as Enrico Fermi‘s bodyguard. He moved with his wife and daughter to Los Alamos in 1943.
Harrison Brown (1917-1986) was an American geochemist. He worked at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) and Oak Ridge sites during the Manhattan Project.
