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.
Treadwell worked at the 100-B and 100-D Areas at Hanford during the Manhattan Project.
Philip Cooperman was a member of the Special Engineer Detachment on the Manhattan Project from 1944-1946.
