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.
D. J. O'Leary worked for the Tennessee Eastman Corporation at the Y-12 Plant.
George Weisiger worked at Oak Ridge during the Manhattan Project, although it remains unknown what his specific duties were.
