William Duncan, born 1785-1786, first wife unknown but married by 1805 (birth of son Meredith), married last (2nd?) to Jane Adam or Oden in 1825 in St.Mary Par. LA; to Liberty Co. TX by 1826 (age 40), died 1836.  Perhaps son of Robert Duncan, wife Hannah Carr, who was probably a son of John Duncan Sr. born ca 1735 VA.