William Estabrook Chancellor (September 25, 1867 – February 12, 1963) was an American academic and writer. An opponent of the 1920 Republican presidential candidate, Warren G. Harding, Chancellor gained notoriety when he allegedly wrote a study of Harding's ancestry just prior to the election, asserting that Harding had an African-American ancestor. Chancellor denied authorship, and it has never been proved. Two years later, a biography of Harding was published under Chancellor's name, but Chancellor denied authorship of that as well.
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