The Return of Frank James (1940)

Frank James, the brother of Jesse James, has been laying low, living as a farmer and taking care of Clem, the son of one of the members of the James gang. He gets word that Jesse was killed by Bob and Charlie Ford, he hoped that the law would deal with them but when he learns that the railroad man whom he and Jesse terrorized contracted them to kill Jesse and helped them get off, he goes after them. Clem whom he told to remain on the farm goes with him and when it's impossible for him to do so, Frank has no choice to let him tag along. Now in order to cover their tracks they start telling people that Frank James is dead and that they saw it. Eleanor Stone, a female reporter, who wants to write about it interviews them and they are both taken with each other. But eventually she learns who Frank is from the Pinkerton detective who is tracking them but doesn't turn them in. But eventually Frank learns that his farm hand, Pinky has been arrested as his accomplice and is about to be hung. Now short of knowing who Frank is, he has not done anything to help Frank, so Frank has to decide what is more important getting the Fords or helping Pinky.