L. R. Malcolm

Arnold E. Swanson

Arnold Swanson served in the Army at Los Alamos during the Manhattan Project.

Charles E. Allen

Harold B. Nilling

Harold B. Nilling was a laboratory helper at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Evelyn L. Sargent

Evelyn Sargent was a staff worker at Los Alamos during the Manhattan Project.