National Museum of Nuclear Science & History
W. H. McWhirter worked for the J.A. Jones Construction Company.
Howard Gest worked for Clinton Laboratories at the X-10 Reactor. Gest was one of the scientists who signed Leo Szilard’s petition against the use of the atomic bomb.
J. R. Pierson worked for the Tennessee Eastman Corporation at the Y-12 Plant.
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.