Van Landingham was widely considered to have set the record for longest surname in the history of Major League Baseball, at 13 or 14 characters (depending on whether one counts the space), though his record has since been tied or broken (again, depending on the reckoning of the space) by Jarrod Saltalamacchia.
William Shakespeare | Ludwig van Beethoven | William Laud | Vincent van Gogh | William Blake | William | William III of England | William Morris | William McKinley | William Howard Taft | William Ewart Gladstone | Van Morrison | William the Conqueror | William S. Burroughs | William Shatner | William Faulkner | William Randolph Hearst | William Wordsworth | William Tecumseh Sherman | William Hogarth | Prince William, Duke of Cambridge | Van Halen | William Penn | William Jennings Bryan | William Gibson | William Wilberforce | William James | William Makepeace Thackeray | Fort William | William Hanna |