National Museum of Nuclear Science & History
R. A. Jones worked for the Roane-Anderson Company.
Alfred Pfanstiehl was a junior physicist at the Chicago Met Lab during the Manhattan Project. Pfanstiehl was a signatory of the Szilard Petition, an attempt to avert military use of the atomic bomb against Japan.
Castens worked for Stone and Webster Engineering Corporation.
Thomas Brill was a research assistant at the Metallurgical Laboratory in Chicago during the Manhattan Project.
William Page was a staff worker at Los Alamos during the Manhattan Project.