1  William Stewart Blair (30 May 1816 Crawford Co, PA – 9 Jul 1890 Omaha, NE)   +  Jeanette Locke (27 Sep 1818 Raloo, Antrim Co, Ireland – 7 Dec 1885)      2  Mercy A. Blair (11 Jun 1840 IL – )         +  William H. Stone       2  Martha J. Blair (1843 IL – )      2  Samuel Russell Blair (1 Jul 1845 Maryland, Ogle Co, IL – 9 Jan 1908 Mt. Morris, Ogle Co, IL)         +  Caroline V. Fish (15 Oct 1841 MD – 12 Jun 1907)      2  Unknown Blair (1846 IL – )      2  Mary H. Blair (28 Nov 1848 IL – )         +  William McKay       2  Sarah Blair (13 Jul 1850 IL – 13 Sep 1850)      2  Luna Blair (2 Jun 1852 – 8 Jun 1858)      2  Lina Blair (17 Dec 1855 – 25 Jun 1858)      2  Florence Wanda Blair (20 Jun 1859 Mt. Morris, Ogle Co, IL – )         +  George B. McCosh (4 Mar 1855 Quincy, Franklin Co, PA – 5 Dec 1915)      2  Willa Blair (20 May 1861 – 22 Sep 1862)