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: Frontier Marshal Lake employed a style of fictionalized dialog that was popular during the era but which is no longer accepted in biographies. The entire book was published as "Wyatt Earp: Frontier Marshal" on October 7, 1931, two years after Earp's death. It portrayed Earp as a "gallant white knight" and entirely avoided mentioning Josephine Earp and Mattie Blaylock. The book was immediately and immensely popular, becoming a bestseller. It drew considerable positive attention and established Lake as a writer for years to come. It also established the Gunfight at the O.K. Corral in the public consciousness and Wyatt Earp as a