Alexander M. Tuholsky

Frank Karcher

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

Raymond A. Taylor

Raymond Taylor was a member of the Special Engineer Detatchment (SED) at Los Alamos during the Manhattan Project.

R. O. Bryan

G. M. Parrish

G. M. Parrish worked for the Roane-Anderson Company.