F. Todd Smith is an associate professor of history at the University of North Texas. He is the author of several books on Texas Indians, including "The Caddo Indians: Tribes on the Convergence of Empires, 1542-1854," "The Wichita Indians: Traders of Texas and the Southern Plains, 1540-1845," and "The Caddos, the Wichitas, and the United States, 1846-1901."