National Museum of Nuclear Science & History
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.
Lester Everett worked for the Tennessee Eastman Corporation at the Y-12 Plant.
A. V. Hawkins worked for the Roane-Anderson Company.
Chamberlain worked at the 300 Area at Hanford during the Manhattan Project.