Kim and Debbie Chatfield’s detailed knowledge of their house goes back only to 1899, the year when Kim’s great-grandparents, Albert and Helen Chatfield, bought this saltwater farm as a summer retreat, but they can tell you virtually everything that’s happened here since. They know the source of the settee that’s graced the parlor, upholstery intact, for five generations (Macy’s); when the 1895 Baldwin grand piano was moved into the “new” sunroom (1923); and the provenance of each of Great-Gra...