He was an American political figure. A Southern Democrat, Cobb was a five-term member of the United States House of Representatives and Speaker of the House from 1849 to 1851. He also served as a Secretary of Treasury under President James Buchanan and Governor of Georgia.
Benson John Lossing, ed. Harper's Encyclopedia of United States History (vol. 2) (New York, NY: Harper and Brothers, 1912)