Arthur F. Vogelman

Mathias A. Klinger

Mathias A. Klinger was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Raymond G. Stone

H. C. Dahleen

Dahleen worked in the United States Engineer District Office.

Matthew Sands

Matthew Sands (1919-2014) was an American physicist. In 1943, Matthew Sands began working for the Naval Ordnance Laboratory and developed two types of influence mines before being disillusioned by the bureaucracy of the navy.