William Simpson Oldham, Sr. (1813–1868), politician in the Confederate States of America during the American Civil War
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William Kavanaugh Oldham (1865–1938), acting Democratic governor of the U.S. state of Arkansas, 1913
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Will Oldham (born 1970), American singer, songwriter, and actor
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William Fitzjames Oldham (1854–1937), Indian-born British-American bishop and missionary
William Shakespeare | William Laud | William Blake | William | William III of England | William Morris | William McKinley | William Howard Taft | William Ewart Gladstone | 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 | William Penn | William Jennings Bryan | William Gibson | William Wilberforce | William James | William Makepeace Thackeray | Fort William | William Hanna | William Hague | William III | William Hurt | William Walton |