American outlaw best known as the leader of the infamous Dalton Gang.
He followed in his brother's footsteps by becoming a Deputy U.S. Marshal.
He died in a shootout while attempting to rob a bank in Coffeyville, Kansas.
His older brother Frank Dalton was a deputy U.S. Marshall.
He was portrayed by actor Gregg Palmer in the the 1952 film The Cimarron Kid.