Mary married Samuel Ferguson in 1808 in Beaver, Pennsylvania, United States. Samuel (son of David Ferguson and Susannah Pollard) was born in 1786 in Castlewellan, County Down, Ireland; was christened on 12 Jun 1787 in Gargunnock, Stirlingshire, Scotland; died on 1 Jun 1858 in Armstrong, Pennsylvania, United States; was buried in Buffalo United Presbyterian Church Cemetery, South Buffalo Township, Armstrong, Pennsylvania, United States. [Group Sheet] [Family Chart]