National Museum of Nuclear Science & History
LeRoy Grigsby worked for the Roane-Anderson Company.
R. P. Seven worked for the United States Engineer District Office.
Bill Hartnett worked in plutonium metallurgy for the Manhattan Project at the Hanford Engineer Works from January 1943 to December 1946.
W. J. Scanlan worked for the Tennessee Eastman Corporation at the Y-12 Plant.
