Dover is a city in Strafford County, New Hampshire, in the United States of America. It is the county seat of Strafford County, and home to Wentworth-Douglass Hospital, the Woodman Institute Museum, and the Children's Museum of New Hampshire. The Hiltons' name survives today at Hilton Park on Dover Point, located where they landed near the confluence of the Cochecho and Bellamy rivers with the Piscataqua. They had been sent from London by The Company of Laconia, which intended to establish a colony and fishery around the Piscataqua. In 1631, however, it contained only three houses.