In 1928, Lloyd Barker was incarcerated in the federal penitentiary at Leavenworth, Kansas, Arthur "Doc" Barker was in the Oklahoma State Prison, and Fred was in the Kansas State Prison.
I 1928 blev Lloyd Barker fængslet i det føderale fængsel ved Leavenworth, Kansas, Arthur "Doc" Barker var i Oklahoma State Fængsel, og Fred var i Kansas State Fængsel.