Path breaking study of Tejano ranchers and settlers in the Lower Rio Grande Valley from their colonial roots in 1730 until 1900. Analyzes complex Mexican-Anglo interaction in South Texas, and how Tejanos continued to play a leading role in the commercialization of ranching after the 1848 Guadalupe Hidalgo treaty. A result of a careful study of land and tax records, brands, livestock bills of sale, wills, population and agricultural censuses, and oral histories. Also shows how Tejanos adapted to maintain control of their ranchos despite Anglo encroachment. Albuquerque, 1998, 1st Ed., 368 Pgs, PB.