National Museum of Nuclear Science & History
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.
Staub worked as a physicist in the Experimental division at Los Alamos during the Manhattan Project.
J. G. Smith worked for the Roane-Anderson Company.