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
Wyatt Earp and memorabilia for sale was a Colt .45 caliber said by Earp descendants to have been owned by Wyatt Earp. Also included in the auction was a Winchester lever-action shotgun belonging to Wyatt Earp. Earp was known to carry a .45 caliber revolver, as he did on the night of the Fitzimmons-Sharkey fight in 1896. Historians have credible evidence that Wyatt used a .44 caliber 1869 American model Smith & Wesson during the gunfight at the O.K. Corral. This weapon was given by Earp to John Flood, who left it to Earp historian John D. Gilchriese. Descendants of Wyatt Earp's