The Hatfield clan poses in April 1897 at a logging camp in southern West Virginia. The most infamous feud in American folklore, the long-running battle between the Hatfields and McCoys, may be partly explained by a rare, disease inherited by the McCoy clan that can lead to hair-trigger rage and violent outbursts.(AP Photo)
The Hatfield clan poses in April 1897 at a logging camp in southern West Virginia. The most infamous feud in American folklore, the long-running battle between the Hatfields and McCoys, may be partly explained by a rare, disease inherited by the McCoy clan that can lead to hair-trigger rage and violent outbursts.(AP Photo)