The Wilbur Ranch near Arivaca was ‘beautiful, cruel country,’ and its owner–Eva Antonia Wilbur-Cruce–lived a hard, romantic life there. Not to mention the cattle rustlers, machine-gun killers of horses, pistol-toting assassins and other agents of a violent 20th-century cattle war. This was still the Wild West, and La Pistolera gave as good as she got.