National Museum of Nuclear Science & History
M. E. Gregson worked for the Roane-Anderson Company.
Stanley Liebert was a machinist in the SAM Laboratory at Columbia University between 1944 and 1945.
Stanley Thomson was a research associate at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Raymond L. Brin was a Technical Sargeant in the Army’s Special Engineer Detachment. He worked at Los Alamos during the Manhattan Project, and traveled to Tinian Island as a member of Project Alberta.
G. E. Freeman worked for the Tennessee Eastman Corporation at the Y-12 Plant.
