National Museum of Nuclear Science & History
Kenneth O. Roebuck served in the First Ordnance Squadron.
David Nicodemus (1916-1999) was an American physicist. Nicodemus worked at Los Alamos during the Manhattan Project and witnessed the Trinity Test.
Leo P. Hassen was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
After the war, Bell was assigned to the Japan Atomic Bomb Damage Survey teams.