James "Jimmy" Doolittle was an American aviator and general, known for leading the Doolittle Raid on Japan during World War II and pioneering advancements in aircraft design.
Edward "Butch" O'Hare was a World War II fighter pilot who received the Medal of Honor for his bravery in single-handedly shooting down five Japanese bombers.
Frank Nitti was a notorious American mobster, enforcer and eventual boss of the Chicago Outfit, infamous for his criminal activities and connections to Al Capone.