with another protégé and close friend, the architect Charles Bulfinch, who is given attribution for the design of the most remarkable house of its time in the region. The mansion was set on a high earth berm facing east across Dorchester Bay. Completed in 1796, its signature architectural feature was a two-story circular drawing room 32 feet in circumference with a domed ceiling. The bow was pulled out from two traditional Federal style wings and surrounded by a colonnade. Everyone called it the Round House and Mrs. Swan filled it with French furnishings; much of it appropriated by the republican French government from royal palaces and sold to Swan's import company. Several pieces are now in the collections of the Sargent House Museum, Gloucester, MA and the Museum of Fine Arts, Boston. Mrs. Swan bought out two of the original investors in the largest and most far reaching real estate venture in postwar Boston when she became the only female member of the four person Mount Vernon Proprietors that acquired the John Singleton Copley pasture in 1796. It was subdivided into townhouse lots that became very valuable when the State House opened in 1798. Mrs. Swan built three houses on the land for her daughters at 13, 15 + 17 Chestnut Street (built in 1805 and 1807) and her own townhouse at 16 Chestnut Street in 1817. Jackson assessed the property and handled all financial transactions on all four homes, each designed by Charles Bulfinch, who seemed now to be among the members of her salon. In 1791, no doubt at the urging of Mrs. Swan, Jackson and others helped pass legislation which repealed the 1750 law against theater performances. Roxbury state senator William Heath was probably helpful. Jackson was trustee of the Boston Theatre – Boston's first – designed by Charles Bulfinch, at the corner of Federal and Franklin streets, that opened in 1793. Jackson managed the household affairs as well. He was very close to the daughters. He organized and managed the marriage of oldest daughter Hepzibah to Dr. John Clarke Howard, grandson of John Clarke in 1800 and in 1802 the wedding of Sarah Swan to William Sullivan son of James Sullivan. Mrs. Swan disapproved of her middle daughter's fiancé John Turner Sargent (his brothers were Daniel Sargent, Henry Sargent and Lucius Manlius Sargent, first cousin of Judith Sargent Murray, nephew of Paul Dudley Sargent). Yet despite