National Museum of Nuclear Science & History
J. G. LeSieur, Jr. worked for the United States Engineer District Office.
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.
Harper worked for Stone and Webster Engineering Corporation.
WIley Thomas, Jr. worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Breslow worked at Los Alamos during the Manhattan Project.
