Christopher Gibson School Christopher Gibson School No. 532 Postcard. Caption on front: Christopher Gibson School, Dorchester. Postally unused. On verso: The Royal Blue card pub. by Putnam Art Co., Grove Hall, Boston. Facebook Twitter Print Friendly Skills Christopher Gibson School, Dorchester, Mt. Bowdoin Posted on November 24, 2022 ← First Church and Lyceum Hall Frank Wood Convalescent Home →