Our daughter married a descendant of a half-brother of Mordecai Sayles(1816-1906), Stephen Cook Sayles(1844-1914) of Steuben County,New York. Mordecai left Steuben Co., New York in 1837 and ended up in Rock County. My research indicates that Mordecai is a descendant of Stephen(1788-1872) and Hephzibah(1795-1842) Sayles. Mordecai had at least one brother, James H. Sayles. Can anyone confirm that and provide information on the parents of Stephen and/or Hephzibah? I have the names of the "living" children of Stephen Sayles (via his three wives) as of the date of his Will in 1872.