William Dennison, Jr. (November 23, 1815 – June 15, 1882) was a Whig and Republican politician from Ohio. He served as the 24th Governor of Ohio and as U.S. Postmaster General in the Cabinet of President Abraham Lincoln during the American Civil War.
Benson John Lossing, ed. Harper's Encyclopedia of United States History (vol. 3) (New York, NY: Harper and Brothers, 1912)
Courtesy the private collection of Roy Winkelman