 Two of the most memorable were Edward Teach, known as Black Beard, and Stede Bonnet.For a time, Folly Island was known as Coffin Island not because of deaths or burials, but because of its ownership by the Coffin family, plantation owners of Beaufort and Charleston counties.The only Civil War-related fighting to occur on the island was on May 10, 1863, when Confederate forces attacked Union forces.