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 boosted Wyatt's reputation. The book later inspired a number of stories, movies and television programs about outlaws and lawmen in Dodge City and Tombstone. Lake wrote a number of screenplays for these movies and twelve scripts for the 1955–61 television series "The Life and Legend of Wyatt Earp" starring Hugh O'Brian as Earp. The popular movie "Gunfight at the O.K. Corral", released in 1957, starring Burt Lancaster as Earp, cemented his place in Western history as a hero lawman. The movie also altered the public's perception of cowboys, who in Earp's time and locale were outlaws, but in the movies