Dale M. Brown

Leo P. Hassen

Leo P. Hassen was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

George L. Kehl

George Kehl was a metallurgist and professor at Columbia University’s School of Mines. He worked at Los Alamos on the Manhattan Project.

J. Webb

J. Webb worked for the Roane-Anderson Company.

C. A. Caldwell