Edgartown, Colonial County of Dukes, The Colony of Massachusetts Bay, British Colonial America is today a tourist destination on the island of Martha's Vineyard and is the county seat. It was once a major whaling port, with historic houses that have been carefully preserved. Today it hosts yachting events around its large harbor. It includes the smaller island of Chappaquiddick, remembered in connection with a fatal incident in 1969, involving Edward Kennedy, who was staying in one of the town's hotels [ https://en.wikipedia.org/wiki/Edgartown,_Massachusetts ]