From NKAA, Notable Kentucky African Americans Database (main entry)
Coleman, William David (Liberia)
(born: July 18, 1842 - died: July 12, 1908)William D. Coleman, born in Fayette County, KY, was enslaved then gained his freedom and then settled in Liberia, Africa. Coleman was Vice President of Liberia before becoming its 12th president (1896-1900). He first completed President J. J. Cheeseman's term and was then elected to the presidency.
For more see The Fascinating Story of Black Kentuckians, by A. A. Dunnigan; The Political and Legislative History of Liberia, by C. H. Huberich; William David Coleman, at the African American Registry website.

