Texas folklorist J. Frank Dobie, in Vaquero of the Brush Country, called Juan Nepomuceno Cortina "the most striking, the most powerful, the most insolent, and the most daring as well as the most elusive Mexican bandit, not even excepting Pancho Villa, that ever wet his horses in the muddy water of the Rio Bravo."Juan Cortina and the Texas Mexico Frontier, 1859-1877 is the story of an illiterate Brownsville ranchero who rose to become a rugged and...