Famous silent screen actor and history buff,William S. Hart, was hired by the studios as a tech adviser and to coach Johnny Mack Brown for his role as Billy the Kid. During a publicity photo shoot, Brown is seen holding Hart's most prize possession from his gun collection: a revolver that once belonged to Billy the Kid. It later turned out that Mr. Hart was bamboozled, the gun was manufactured years after Billy the Kid's death. Despite not being Billy the Kid's gun, the revolver continued to be on display at the William S. Hart Museum. In the 1990s, the museum was broken into and the entire gun collection was stolen.
Although he's fourth billed, most of Karl Dane's scenes wound up deleted from the final release print.
Lucille Powers was originally cast in the role of Claire, but at some point before the picture debuted she was replaced by Kay Johnson. There are several publicity stills of the film that feature Lucille Powers instead of Kay Johnson.