I dont know if anyone else knows of these people, beside Roland, but i'm sure a lot do. Do you think King may have placed features from both these law-man and outlaw?
Wild Bill was known for his quickdraw and general goodness as a lawman, he also killed his friend by accident( like roland and cuthbert killing alain) there are also crazy stories about him.
As for John Hardin, he was an outlaw who was said to be THE fastest at drawing his revolver.
Do you think that these two together helped kind make roland?