National Museum of Nuclear Science & History
Attended the University of Michgan.
L. F. Preston worked for the United States Engineer District Office.
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.
McCook worked in the 200 West Area at Hanford during the Manhattan Project.