+———Nicholas T. Koontz  |      William W. Koontz (22 May 1870 Mt. Morris, Ogle Co, IL – 1940 Mt. Morris, Ogle Co, IL)  |                  |           +———Jacob Henry Mumma (9 Apr 1766 Lancaster Co, Pensylvania – 23 Sep 1848)  |           |  |       +———John Mumma (12 Dec 1787 – 25 Nov 1835)  |       |   |      |       |   +———Elizabeth Newcomer Hertzler (4 Oct 1764 – 23 Feb 1836)  |       |  |   +———Elias Alexander Mumma (4 Apr 1809 Washington Co, MD – 1885)  |   |   |      |   |   +———Elizabeth Susan Shafer (19 Mar 1791 – 1 Aug 1820)  |   |  +———Susan M. Mumma (28 Jul 1845 IL – 17 Jul 1898 Ogle Co, IL)      |                  |       +———John Miller      |       |      |   +———Daniel Miller (12 Sep 1778 – )      |   |      +———Susanna Miller (20 Feb 1809 MD – 25 May 1869)          |              +———Catherine Funk ( – 1823 Washington Co, MD)