- For the scene where Deputy Curly (Hank Worden) has trouble pulling a mule about a train, director 'Ford, John' rigged the reins to pull backwards whenever Worden pulled forward.
- Ford had a greensman water a cactus overnight to allow it to be squeezed for water.
- This is a remake of John Ford's silent film "Marked Men" (1919) which starred Ford's long-time friend Harry Carey. When Carey died in 1947, Ford decided to remake the story in Technicolor and dedicate the film to his memory. Carey's son, Harry Carey Jr., plays one of the three, "The Abilene Kid".
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