The younger brother of Harvey Jewell served as the national chairman for which American political party?
Harvey Jewell:  His younger brother, Marshall Jewell (1825-1883) would later be elected Governor of Connecticut and would serve as President Grant's United States Postmaster General. Marshall Jewell: Marshall Jewell (October 20, 1825February 10, 1883) was a manufacturer, pioneer telegrapher, telephone entrepreneur, world traveler, and political figure who served as 44th and 46th Governor of Connecticut, the U.S. Minister to Russia, the 25th United States Postmaster General, and Republican Party National Chairman.
Republican Party