Theodore R. Geren

O. F. Davis

Ruth Hillard

Ruth Hillard was a technician at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Frank P. Erichsen

Major Frank P. Erichsen worked at 100-F Area at Hanford during the Manhattan Project. One of the leading U.

Arnold E. Swanson

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