H. E. Price

Robert W. Ball

Robert Ball was a security guard at the Metallurgical Laboratory in Chicago during the Manhattan Project.

Frank Karcher

Sergeant Frank Karcher was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

C. V. Cannon

C. V. Cannon worked for Clinton Laboratories at the X-10 Reactor.

A. J. Bruckert