National Museum of Nuclear Science & History
Norman Harry Nachtrieb was an American chemist who worked on the Manhattan Project at the University of Chicago and Los Alamos.
Jas Tancil worked for the Poe Piping & Heating Company.
Robert Ball was a security guard at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Dr. William F. Neuman worked as a biochemist for the Manhattan Project at the University of Rochester.