Claim: Captain William Fly, who swore an allegiance to his hometown, was born in July 12, 1726 at Boston, Massachusetts, the 21st most populous city in the United States.
Evidence: Captain William Fly (died 12 July 1726) was an English pirate who raided New England shipping fleets for three months in 1726 until he was captured by the crew of a seized ship. 
12 July 1726
Boston, Massachusetts