Colonial Club Postcards Colonial Club No. 306 Postcard. Caption on front: The Colonial Club, Dorchester, Mass. Postmarked Oct 23, 1905. Dorchester Station, Boston. The house formerly belonged to Walter Baker of chocolate fame. Facebook Twitter Print Friendly Skills Colonial Club, Dorchester, Walter Baker Mansion Posted on November 17, 2022 ← Municipal Building (without telephone pole) Carney Hospital →