The Atwood House Museum in Chatham, Massachusetts is a property of the Chatham Historical Society which, in 1926, purchased the property of Captain Joseph Atwood (1720–1794) to protect the property and to display and preserve articles and documents related to Chatham's history. The portion of the museum which is the original house was built about 1752 and is the oldest existing structure in Chatham. The museum has been open to the public since the purchase and is available to visitors from mid-June to mid-October and to researchers year-round by appointment.

• http://en.wikipedia.org/wiki/Atwood House Museum