Resthaven Postcards Resthaven No., 263 Postcard. Caption on front: Resthaven, Dorchester, Mass. Postally unused. Seems to have been located where the Dorchester Court House is located today on Washington Street. Facebook Twitter Print Friendly Skills Dorchester, Resthaven, Washington Street Posted on November 14, 2022 ← Residence of Micah Dyer Second Congregational Church, Codman Square →