National Museum of Nuclear Science & History
Ruth Langley worked for the United States Engineer District Office.
Girdler worked at the 300 Area at Hanford during the Manhattan Project.
Raymond Frank was a metallurgist at the University of Chicago and stayed with the Met Lab after graduating from the university.
George Mallinckrodt was a physicist at the Manhattan Project’s Los Alamos, NM facility. He also worked at Argonne National Laboratory, the successor of the University of Chicago’s Metallurgical Laboratory (“Met Lab”).
