Some reviewers compared Harry Carey's character to Judge Roy Bean, Tim Holt's to Billy the Kid, Jean Rouverol's to Calamity Jane and the McQuinn Brothers to Billy and Ike Clanton. Also, Bradley Page's character is clearly similar to Doc Holliday.
RKO borrowed Tim Holt and Harry Carey from producer Walter Wanger for this picture. Soon, Holt would star in a series of Westerns for the studio. RKO also attempted to borrow Anne Shirley from Wanger, but she refused the part and was put on suspension.
At the beginning of the film, it is mentioned that Garfield is President. That would set the time as between 4 March 1881 and 19 September 1881.