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Lawless Valley was Fred Kohler, Sr.'s last film and was the first picture in which his son, Fred Kohler, Jr., appeared with him. Hollywood Reporter production charts list John Twist and Clarence Upson Young, not Oliver Drake, as the film's screenwriters, but their contribution to the final film has not been determined. Carl Stockdale is listed as a cast member in Hollywood Reporter production charts, but his participation in the final film has not been confirmed. Modern sources include Robert Stanton, Ben Corbett, George Chesebro and Robert McKenzie in the cast.