The Harvard Square Business Association, in partnership with its longtime and treasured member, Longfellow House-Washington’s Headquarters National Historic Site, is pleased to present Harvard Square’s “Thanksgiving” trees. These whimsical trees, festooned with autumn leaves and Longfellow poems, are installed on Deguglielmo Plaza which is situated at 31 Brattle Street. Folks are encouraged to take the laminated cards which feature beautiful photographs of the Longfellow House – Washington’s Headquarters National Historic Site. The Longfellow House is located at 105 Brattle Street, just a short walk from the plaza. The grounds are open year-round from dawn to dusk. Please stop by!