One of over 700 Paramount productions, filmed between 1929 and 1949, which were sold to MCA/Universal in 1958 for television distribution, and have been owned and controlled by Universal ever since. This was first released on DVD 1 June 2004 as part of the Universal Western Collection and continues to enjoy occasional airings on both The Western Channel and Turner Classic Movies.
The Native-American (Anthony Quinn) who happens upon Hickok and Cody's camp has the guidon for Company E, 7th Calvary. This company, commanded by Lt. Algernon Smith, was known as the "Gray Horse Company".
The script originally had Anthony Quinn's character entering the campsite with no concern because he thought it was the camp of another Indian. Quinn told Cecil B. DeMille that a real Indian would know the difference between a white man's camp and that of another Indian's, and should show caution when entering. When Quinn insisted, DeMille thought about it and agreed that's how the character ought to react.