Huh, TIL:

In contemporary records his name is most often given as Blackbeard, Edward Thatch or Edward Teach. The latter is most often used because it is the form used in the dispatches of North America's only newspaper at the time, The Boston News-Letter, but primary sources written by people who had actually met the pirate all refer to him as "Thatch" or variations thereof. Several spellings of his surname exist: Thatch, Thach, Thache, Thack, Tack, Thatche, and Theach. One source claims that his surname was Drummond, but the lack of any supporting documentation makes this unlikely. Pirates habitually used fictitious surnames while engaged in piracy so as not to tarnish the family name, which makes it unlikely that Teach's real name will ever be known.