National Museum of Nuclear Science & History
Hatfield worked in the United States Engineer District Office.
Dominick Itzi was stationed at Los Alamos with the Provisional Engineer Detachment (PED) from 1944 to 1946.
H. VanDerHorn served in the 390th Air Service Group.
Charles W. Hagen was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
