Dr. Mercer provided a comfortable parsonage, situated about a half mile on the other side of the bayou. (In our part of the country we call the dry watercourses in the valleys by the same name which is applied in the Louisiana lowlands to their filled waterways.)
The parsonage was a high brick basement which provided four additional rooms, used for servants and supplies. The chimney was built in the center, providing fireplaces for each room. There were wide galleries upstairs on three sides. So far as I know, the only pastor of St. Mary's was Dr. Savage, who lived in the parsonage and who served here about ten years, afterwards going to Pass Christian, Mississippi.
There could never have been a large congregation, although it is true that the period when the Chapel was in use there were families living on all the near-by plantations and many of them were Episcopalians. I know that some of the congregation came from Berkeley, the Conner place across Second Creek. Since about 1850 the Chapel has been only occasionally used. Its statues and memorials are still there and it stands, facing an all-devouring time, alone with its memories."
St. Mary's Episcopal Chapel was built with brick made by slave labor under the direction of Henry Huntington, Dr. Mercer's overseer. The Mercer women are buried beneath the Chapel along with several neighbors. The site was a cemetery before 1837.