+———Samuel Long Blair (13 Feb 1783 Northumberland Co, PA – 5 Sep 1861 Adeline, Ogle Co, IL)      |  +———William Stewart Blair (30 May 1816 Crawford Co, PA – 9 Jul 1890 Omaha, NE)  |   |      |   +———Mercy Chidester (2 Dec 1791 Washington Co, PA – 19 Jun 1861)  |      Samuel Russell Blair (1 Jul 1845 Maryland, Ogle Co, IL – 9 Jan 1908 Mt. Morris, Ogle Co, IL)  |      +———Jeanette Locke (27 Sep 1818 Raloo, Antrim Co, Ireland – 7 Dec 1885)