Codman Square Congregational Church Postcards Codman Square Congregational Church No. 542 Postcard. Caption on front: Codman Square Congregational Church, Dorchester, Mass. Postally unused. On verso: Published by The Metropolitan News Co., Boston. Facebook Twitter Print Friendly Skills Codman Square, Dorchester, Second Church Posted on November 25, 2022 ← Greetings from Dorchester, Mass. I’m waiting for your mail in Dorchester →