”MISS MARGARET SIDDONS.
Daughter of Edward and Amy (Ware) Siddons, of Elsinborough, Salem County, New Jersey, later of Philadelphia. Married in 1811, at the Second Presbyterian Church, Philadelphia, Benjamin H. Kintzing, probably a son of Abraham Kintzing, of Philadelphia. He died as a sea captain on his passage from the Island of St. Thomas to the United States, March 2, 1825, in his 35th year. Her sister, Mary Siddons (1788-1867), a noted beauty, painted by Sully in 1812, was married in 1816, to Israel Whelan, Jr. (1783-1827), and had a grandson Henry Whelan, Jr., a President of The Pennsylvania Academy of the Fine Arts.
Loaned by the Worcester Art Museum, of Worcester, Massachusetts.”
Catalogue of the Memorial Exhibition of Portraits by Thomas Scully, by Pennsylvania Academy of Fine Arts, 1922, page 59