Edwin Dennison Morgan
Edwin Denison Morgan (February 8, 1811 – February 14, 1883) was Governor of New York from 1859 to 1862 and served in the United States Senate from 1863 to 1869. He was the first and longest serving chairman of the Republican National Committee.
Benson John Lossing, ed. Harper's Encyclopedia of United States History (vol. 6) (New York, NY: Harper and Brothers, 1912)