Enterprise Rent-A-Car founder Jack Taylor dropped out of Washington University to enlist in the Navy.

Taylor was a business student at Washington University in St. Louis when he left school and enlisted to serve as a pilot during World War II. Taylor returned to St. Louis and started Enterprise Holdings, which powers Enterprise Rent-A-Car, with a fleet of seven cars and one employee. He named the company after the aircraft carrier he served on during the war, the USS Enterprise.

Taylor ran the business until 1991, when he passed it down to his son. Forbes estimates he and his family's net worth to be north of $12 billion.