My ggg-grandmother, Elizabeth Nixon was b. 1793, PA,m. 28 Aug 1818 in Jefferson Co., OH, to Joseph Shane. Other Jefferson Co. marriages include Jane Nixon to Michael Johnston, 17 Mar 1828; Andrew Nixon m. Mary Scarlott 5 Mar 1840. These families are found in Holmes Co., OH in the 1840's. How are they related? Possibly siblings? If so, who are their parents? The mother may have been named Isabel.