St. Gregorys Church, Dorchester, Mass. Postcards St. Gregorys Church, Dorchester, Mass. No. 1305 Postcard. Caption on front: St. Gregory’s Church, Dorchester, Mass. 7339. Postally unused. On verso: American Art Postcard Co., Boston, Mass. Photolux. Facebook Twitter Print Friendly Skills Dorchester, St. Gregory's Church Posted on November 30, 2022 ← St. Brendans Church, Dorchester, Mass. St. Margarets Church, Dorchester, Mass. →