National Museum of Nuclear Science & History
John Sullivan was a staff worker at Los Alamos during the Manhattan Project.
Arthur L. Hughes was an British/Welsh physicist. He worked on the Manhattan Project in St. Louis on the cyclotron and plutonium production and at Los Alamos, NM.
E. N. Taylor worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Johnson worked at the 100-B Area at Hanford during the Manhattan Project.