+———Peter Allen (3 Aug 1794 PA – 9 Apr 1866)      |  +———Perrin R. Allen (21 Apr 1832 Luzerne Co, PA – 9 Feb 1888 Leaf River, Ogle Co, IL)  |   |      |   +———Sarah Shaw (4 Apr 1804 – 8 Nov 1884)  |      Sarah Catherine Allen (6 May 1868 Stephenson Co, IL – 30 Apr 1950 Oregon, Ogle Co, IL)  |              |       +———Philip Iler  |       |  |   +———David Iler (31 Dec 1783 Littlestown, PA – 24 Dec 1870 Leaf River, Ogle Co, IL)  |   |   |      |   |   +———Mary Ann Unknown  |   |  +———Margaret Iler (31 Aug 1830 Hagerstown, Washington Co, MD – 19 Jan 1922 Leaf River, 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)