The Hatfields and McCoys were two neighboring families in West Virginia who started a 'blood fued' that lasted for 30 years starting in 1863.. . The OK Corral was a gunfight (some say mismatch) between the Earp brothers (lawmen) w/Doc Holliday against the McLaurys and Clantons in Tombstone Arizona on October 26, 1881.. . Both were examples of famous (and bloody) fueds.