National Museum of Nuclear Science & History
R. E. Graves worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Chalgren worked at the 200 West Area at Hanford during the Manhattan Project.
Bonnie Pauline Hardwick Rogers worked at the Y-12 Plant, operating the machinery separating the uranium isotope U-235 from it's heavier counterpart U-238.
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.
