National Museum of Nuclear Science & History
James Mc Tigrit was a military officer at los Alamos.
Lawrence Sperry worked for the United States Engineer District Office.
Jas Curran worked for Hanley & Company.
Ruska worked for Stone and Webster Engineering Corporation.
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.
