Searching for relatives of David and Mary (Carey)Patterson my 3GGF. They married in 1841. The 1851 Antrim Census shows that David left for America before 1851. Mary and her four sons, John, James, Robert and Alexander, still in Ballygalley. Then I have the family reunited in 1852 in Ontario, Canada. Does anyone have information about David and Mary's parents or siblings?