Neponset River at Mattapan Postcards Neponset River at Mattapan No. 2468 Postcard. Caption on front: Neponset River at Mattapan, Mass. Postmarked Mattapan Station, October, 1907 with one-cent stamp. On verso: Published by C.O. Tucker, Boston. Facebook Twitter Print Friendly Skills Dorchester, Mattapan, Neponset River Posted on December 8, 2022 ← Elephants at Zoo Sheep Feeding in Franklin Park →