Horn, Tom (21 November 1860–20 November 1903), scout, detective, and assassin, was born near Memphis, Scotland County, Missouri. His parents, whose names are no longer known, were farmers. He attended school irregularly during winter months, did hard farm work, enjoyed hunting, and became an excellent marksman. At about age fourteen and after an argument and violent fight with his father, he ran away to Santa Fe and may have worked as a stage driver. While in that region, he learned to speak Spanish. In 1876 or so he went to Prescott, in Arizona Territory, where he met Al Sieber, the famous civilian chief of scouts for various U.S. Army units in the San Carlos area. Little is known of Horn’s activities for the next several years. In 1882, according to Sieber, Horn worked as an army packer. He undoubtedly participated in the army pursuit of Apaches fleeing from the San Carlos Reservation. American cavalry units commanded by Tullius Cicero Tupper and William Augustus Rafferty, both captains, followed the Apaches into northwest Chihuahua, Mexico, and engaged them in April 1882 in a standoff at Sierra Enmedio, in Sonora....
