Whirlwind Horseman  Whirlwind Horseman is a 1938 American Western film directed by Robert F. Hill and written by George H. Plympton. The film stars Ken Maynard, Joan Barclay, Billy Griffith, Kenneth Harlan, Joseph W. Girard and Kenny Dix. The film was released on April 29, 1938, by Grand National Films Inc..