Henry Andrew "Heck" Thomas went to work for the Fort Worth for a year. The famed "Hanging Judge", Isaac Parker appointed him a deputy US Marshall out of Fort Smith, Arkansas. From 1886 to 1900, his jurisdiction was the Indian Territory, now known as Oklahoma. Famed for his bravery, integrity, and fairness, he quickly became a legend. Teamed up with Bill Tilghman and Chris Madsen, they were soon known as the "Three Guardsmen"