"Stephen2 Pearson … married 11 Nov., 1684, Mary, daughter of John and Phebe (Keyes) French of Topsfield. She is mentioned in the settlement of her father's estate, 1707 (Essex Probate, 309:246) (see John Gage). …"
↑ Edgett, Carrie C. "John French of Topsfield, Mass., and Some of His Descendants", in Essex Institute Historical Collections. (Salem, Massachusetts: Essex Institute Press) 44:351.
Agreement to divide the estate of John French of Topsfield dated 5 Aug 1707 is made by their son "John ffrench as Attorney to Mary Pearson Widow", shows that the Mary French that married Stephen Pearson was the daughter of his John Pearson and his wife Phebe Keyes.