National Museum of Nuclear Science & History
Thomas F. Costa served as a 1st lieutenant in the 393rd Bombardment Squadron. He was the bombardier regularly assigned to the B-29 Some Punkins.
Bradley Marmon is a Manhattan Project veteran. Marmon was born in New York on November 15, 1925.
Leo Seren (1918-2002) was an American physicist. Seren (in photo, first row standing, far right) was born on May 9, 1918.