Clarkwood Street, Mattapan Postcards, Streets C Clarkwood Street, Mattapan No. 528 Postcard. Caption on front: 2764 Clarkwood Street, Mattapan, Mass. Postally unused, but written as if to be posted. On verso: New England News Co., Boston, Mass. Facebook Twitter Print Friendly Skills Clarkwood Street, Dorchester, Mattapan Posted on November 24, 2022 ← Seashore Trolley Museum Unitarian Church →