The earliest known European-American settler in what is now Carthage was William Walton (1760–1816), who arrived in the late 1780s after the United States achieved independence in the American Revolutionary War. "Circa" 1800, Walton directed the construction of the Walton Road (Cumberland Turnpike), an early stagecoach route connecting the Knoxville area in the east with Middle Tennessee. The road, which was roughly paralleled later by the construction of what is now U.S. 70, was influential to the development and early settlement of the Cumberland region. Walton operated a ferry across the Cumberland River and a tavern nearby along the road, around which a small community developed. In 1804, Walton's community was chosen as the county seat of the newly formed Smith County after a heated election, and the town of Carthage was laid out shortly thereafter.