The historic furnishings and decorative arts in the museum collections date from the mid eighteenth to early twentieth century. The majority of the furnishings came into the house between 1837 and 1928, and were acquired by the Longfellow family by purchase, inheritance, or gift.
The Longfellows possessed a reverence for the past. For them, having antique objects and furniture stimulated their awareness of America's past and their house's association with George Washington and the American Revolution. The family's cosmopolitan interests are also reflected by many items from around the world within the rooms.