Albert Hoersch, Jr.

R. M. Carpenter

Ernest E. Wollan

Ernest E. Wollan was a research associate at the University of Chicago’s Metallurgical Lab (“Met Lab”) during the Manhattan Project.

H. V. Klaus

Hannibal Fraga

Hannibal Fraga was an engineer. He joined the Manhattan Project in the fall of 1944. He worked in the inspection department at Los Alamos.