The Iron Horse (1924)

Brandon, a surveyor, dreams of building a railway to the west. He sets off with his son, Davy, to survey a route. They discover a new pass which will shave 200 miles off the expected distance, but they are set upon by a party of Cheyenne. One of them, a white renegade with only two fingers on his right hand, kills Brandon and scalps him. Davy is all alone now.
John Ford
George O’Brien, Madge Bellamy, Charles Edward Bull, Cyril Chadwick, Will Walling, Francis Powers, J. Farrell MacDonald, Jim Welch, George Waggner, Fred Kohler, James A. Marcus, Gladys Hulette, Jean Arthur, Chief John Big Tree
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