Complex sentence: John Tipton served as a major in command of two companies of rangers at Fort Vallonia during the War of 1812; he would later become a United States senator, and became the namesake of Tipton County, Indiana.
Split into simpler sentences: John Tipton served as a major in command of two companies of rangers at Fort Vallonia during the War of 1812. He would later become a United States senator, and is the namesake of Tipton and Tipton County, Indiana.