Bernard Manowitz

George Maronde

George Maronde was a security guard at the University of Chicago Metallurgical Lab. He stood guard outside Stagg Field when Chicago Pile-1 went critical on December 2, 1942.

Hannah Grovsnor

Grovsnor worked in the United States Engineer District Office.

Robert Reynolds

Robert Reynolds was a research assistant at the Metallurgical Laboratory in Chicago during the Manhattan Project.

H. E. Boswell