+———Samuel Long Blair (13 Feb 1783 Northumberland Co, PA – 5 Sep 1861 Adeline, Ogle Co, IL)  |      Silas Jackson Blair (18 Oct 1832 Crawford Co, PA – 14 Apr 1860 PA)  |      +———Mercy Chidester (2 Dec 1791 Washington Co, PA – 19 Jun 1861)