Clark Gable (1901-1960) served as an aerial gunner on a B-17 during World War II. He signed up for duty following the tragic death of his wife Carole Lombard, who was on a war bond tour when her plane crashed. He is seen here giving an interview from his waist-gunner position aside a .50 caliber Browning M2 machine gun. (June 6, 1943)
https://www.warhistoryonline.com/military-vehicle-news/the-forgotten-aces-air-gunner-aces-of-wwii-image-heavy.html