Roaring Rails
A railroad engineer adopts a French orphan while he's fighting in the army in World War I, and takes him back to the US when the war ends. Later the boy needs an eye operation that the engineer can't afford, so he takes the rap for a murder he didn't commit in order to get his son the operation.
Directors: Tom Forman
Writers: Doris Dorn, Hunt Stromberg
IMDB: tt0015284