+———William Schrader (1812 OH – 18 Nov 1875 Ogle Co, IL)  |      Samuel Noah Schrader (30 Jun 1853 Leaf River, Ogle Co, IL – 14 Jan 1924)  |              |       +———Philip Iler  |       |  |   +———David Iler (31 Dec 1783 Littlestown, PA – 24 Dec 1870 Leaf River, Ogle Co, IL)  |   |   |      |   |   +———Mary Ann Unknown  |   |  +———Mary Ann Iler (19 Aug 1819 Sharpsburg, Washington Co, MD – 8 Feb 1871 Ogle Co, IL)      |              |   +———John Absalom Harmon (18 Sep 1759 York Co, PA – 26 Aug 1855)      |   |      +———Mary Ann Harmon (31 Dec 1787 Sharpsburg, Washington Co, MD – 2 Apr 1872 Leaf River, Ogle Co, IL)          |              +———Elizabeth Shryock (28 Jul 1763 MD – 16 Aug 1836)