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.
Jose A. Valdez was a staff worker at Los Alamos during the Manhattan Project.
Although the flow of information about the Manhattan Project was tightly controlled, New York Times reporter William L.
