National Museum of Nuclear Science & History
Ruska worked for Stone and Webster Engineering Corporation.
Norman Harry Nachtrieb was an American chemist who worked on the Manhattan Project at the University of Chicago and Los Alamos.
Grace Pitzer worked for the United States Engineer District Office.
Mary Alice Nachtrieb was a chemist who worked at Los Alamos during the Manhattan Project. Her speciality was in plutonium chemitsry.