The Adventures of Gallegher (1965)

An energetic newspaper copyboy in 1889 wants to become a reporter, and he is soon more deeply involved in his stories than he had expected. When he discovers a bank robbery, he helps the reporter, Brownie, to apprehend the four-fingered culprit. Later he helps the police chief who has been framed, and tries to convince the authorities that he has discovered a wanted felon in town.