Remembered for his service during the Civil War in the Army of the Confederate States of America, this sheriff and United States Marshal also served as a law enforcement officer with the Texas Rangers.
He was born in Louisiana to Minerva Mabry and Benjamin Slaughter. He later lived in California and Arizona; in the former state, he was a well-known poker player.
In the 1870s, he began working in the cattle ranching business. His Arizona home, San Bernardino Ranch, became a historic site in the years following his death.
His first marriage, to Eliza Adeline Harris, produced two surviving children. He later married a young woman named Viola Howell, with whom he adopted a daughter named Apache May.
He was a contemporary of Ben Thompson, a fellow lawman, gunfighter, and Confederate Army soldier.