Wagons Westward

Republic, in pre-production trade announcements, had John Wayne slated as the star of this film but cooler heads, once the script was read, realized that Wayne wasn't exactly the dual-role, twin brothers type. The film opens by establishing that, as young boys, David Cook and twin brother Tom are poles apart in disposition and traits. When their father dies, Tom goes to New Mexico to live with his Uncle Hardtack while David remains behind to care for their mother. (imdb)