"Jesse James," said Carl Sandburg, "is the only American bandit who is classical, who is to this country what Robin Hood or Dick Turpin is to England, whose exploits are so close to the mythical and apocryphal." For this definitive study no significant source of information concerning Jesse James and his brother Frank has been neglected, and from it emerges resolution of the debated point: "Were the Jameses common criminals or gallant Robin Hoods?"