The Governor John Langdon House in Portsmouth was built by John Langdon, the New Hampshire Senate's president in 1785. The interior of the home features ornate woodwork and period furnishings.
The John Paul Jones House was built in 1758 in Portsmouth. It was built by Captain Gregory Purcell and turned into a guesthouse later by his widow. Among the guests who lived at the house was Captain John Paul Jones. On display in the house are collections of china, silver, glass, portraits, and clothing.
The Moffatt-Ladd House in Portsmouth was built in 1763 by John Moffatt but is better known as the home of his son-in-law, William Whipple, a signer of the Declaration of Independence. The house still contains original furniture and the grounds feature formal gardens.
The Warner House in downtown Portsmouth was built in 1716. The house has 18 inch thick brick walls. It was originally built for Captain Archibald Macpheadris and his wife Sarah Wentworth but was named for their son-in-law Jonathan Warner. Exhibits include the oldest Colonial wall paintings still in place, Smalt Room, and first example of Queen Anne furniture known in US.
The Wentworth-Gardner House in Portsmouth was built in 1760 for Thomas Wentworth as a wedding gift from his father. On display in the houses is a collection of Wallace Nutting photos.