Lisa, there seems to be a tightly guarded secret concerning John Hickman father of Johnson Lincoln Hickman. Judging by his date of birth, death and absence I would guess that he may have been an outlaw. He is buried in an un-marked grave. Other possibilities could be a gold miner, cowboy, cattle rustler, or horse thief. My father was the only child of Delon Hickman, grand child of Johnson Lincoln Hickman. Thank you for doing this research.