Tombstone, Ariz.: An article in Wednesday's Section A about restrictions on groups presenting reenactments of gunfights in Tombstone, Ariz., said that the restaurant Six-Gun City stages the famous shootout of the O.K. Corral. Actually, it reenacts other shootouts from Tombstone history. Also, the last name of the McLaury brothers, participants in the original O.K. Corral showdown, was misspelled as McLourie.