Sgt. Thomas Pratt, s/o Matthew, b. bef. 1628, slain by Indians between Sudbury and Marlborough on 19 Apr 1676 ["Inventory of the estate of Sergt. Thomas Pratt of Weymouth who was slain by the Indians the 19th day of April, 1676"], m. (1) Mary --- [mother of all the children], m. (2) Lydia ---. Probate mentions "Lydia, relict of Tho: Pratt .. and her present husband Josiah Chapin", eldest son William, son Thomas [guardian John Pratt], eldest daughter Sarah ["from infancy was impotent both of body and mind"], second daughter Hephzibah [married to Ephraim Frost], and daughter Abigail [guardian Thomas White].