In which year was the historic house and museum that the Maine Historical Society operates from designated as a National Historic Landmark?
Maine Historical Society The Maine Historical Society is the official state historical society of Maine. It is located at 489 Congress Street in downtown Portland. The Society currently operates the Wadsworth-Longfellow House, a National Historic Landmark, Longfellow Garden, the Maine Historical Society Museum and Store, the Brown Research Library, as well as the Maine Memory Network, an online database of documents and images that includes resources from many of state's local historical societies.
Lord Mansion The Lord Mansion is a historic house at 20 Summer Street (Maine State Route 35) in Kennebunk, Maine. The multi-part house includes a 1760 Georgian house as an ell to its main element, an 1801 Federal period structure. The house was listed on the National Register of Historic Places in 1973 for its architectural significance; it is also a contributing element to the Kennebunk Historic District.