St. Margarets Church, Dorchester, Mass. Postcards St. Margarets Church, Dorchester, Mass. No. 1306 Postcard. Caption on front: St. Margaret’s Church, Dorchester, Mass. 7320. Postally unused. On verso: American Art Postcard Co., Boston, Mass. Photolux. Facebook Twitter Print Friendly Skills Dorchester, St. Margaret's Church Posted on November 30, 2022 ← St. Gregorys Church, Dorchester, Mass. Daly Industrial School →