Christopher Gibson School Postcards Christopher Gibson School No. 1338 Postcard. Caption on front: Christopher Gibson School, Dorchester. Postmarked Dec. 28, 1907 Dorchester Center Station with one-cent stamp. On verso: No. 529. Pub. by Boston Post-Card Co., 12 Pearl St. Facebook Twitter Print Friendly Skills Christopher Gibson School, Dorchester, Mt. Bowdoin Posted on December 4, 2022 ← Eaton Square showing First Parish Church Old Stoughton St. Burial Ground →