Family feuds in the United States had occurred on October 26, 1881, and was itself the climax of the Earp–Clanton family feud, simmering since the summer of 1880. Tensions between the Earps and both the Clantons and McLaurys increased through 1881, culminating in the historic gunfight. At the O.K. Corral, three deputized Earp brothers, Wyatt, Morgan and Virgil, along with Doc Holliday, had killed Billy Clanton, Frank McLaury and Tom McLaury. The Clanton and McLaury families were aligned with the "Outlaw Cowboys", a loosely knit outlaw group of families, friends and acquaintances then living in surrounding Cochise and Pima counties. The Earp Vendetta ride was a
Hour of the Gun and says goodbye to his unlikely friend, telling him this time he really is returning to Tombstone. As he leaves, though, Earp admits that he's leaving the Southwest altogether, intending never to be involved in law enforcement again. This is the second film by John Sturges about these events, following the fictionalized film from ten years earlier, "Gunfight at the O.K. Corral", which had featured Burt Lancaster as Earp and Kirk Douglas as Holliday. However, Ike Clanton is killed at the end of the earlier film (during the Gunfight at the O.K. Corral itself). In "Hour of the Gun", Clanton