The noted gun - battle had occurred on October 26 , 1881 .
Was itself the climax of the Earp -- Clanton family feud , simmering since the summer of 1880 .
The noted gun - battle had occurred on October 26 , 1881 , and was itself the climax of the Earp -- Clanton family feud , simmering since the summer of 1880 .