Oh, Susanna! (1936 film)

Oh, Susanna is a 1936 American Western film directed by Joseph Kane and starring Gene Autry, Smiley Burnette, and Frances Grant. Written by Oliver Drake, the film is about a cowboy who is robbed and then thrown from a train by an escaped murderer who then takes on the cowboys identity.

Meanwhile Gene is rescued by traveling actors Frog Millhouse Smiley Burnette and Professor Ezekial Daniels Earle Hodgins. Together they travel to Sage City, where Gene gets into a fight with Sheriff Briggs Walter James, who believes he is Wolf, and chokes the singing cowboy. Arrested for Wolfs crimes, Gene is unable to sing in order to prove his identity. At the trial, Gene mouths the words to his songs while a phonograph plays, and after the jury listens, Gene is set free.Wolf arrives at Lees Mineral Springs Ranch pretending to be Gene and asks for his money back. Knowing he is an impostor, Lee refuses to give him the money and Wolf shoots him and robs his safe. On his way to Mineral Springs, Gene comes across a posted reward for Gene Autry, the murderer of Jefferson Lee. Gene meets Lees niece Mary Ann Frances Grant, who is riding with Flash Baldwin Donald Kirke, Wolfs accomplice. Gene notices that Baldwin is wearing his own suit, and decides to pose as Tex Smith, offering to perform at the Lee ranch in place of Gene Autry. After finding his suitcase in Baldwins room, Gene overhears Wolfs scheme to rob the ranch safe, but Baldwin recognizes Genes voice by playing his record while he sings. ........

Source: Wikipedia