+———Jacob Middlekauff      |  +———Frederick A. Middlekauff (15 Nov 1858 Beaver Creek, Washington Co, MD – 19 Apr 1930 Mt. Morris, Ogle Co, IL)  |   |      |   +———Ann Adams  |      June Elizabeth Middlekauff (30 Jun 1906 Mt. Morris, Ogle Co, IL – 21 Mar 1989 Mt. Morris, Ogle Co, IL)  |                  |           +———Johann John Langmann (1749 Hesse-Darmstadt, Germany – 2 May 1838 Rohrersville, Washington Co, MD)  |           |  |       +———Jonathan Longman (8 Jan 1806 Washington Co, MD – 5 Jan 1890 Keedysville, Washington Co, MD)  |       |   |      |       |   +———Eve Unknown (1758 Washington Co, MD – )  |       |  |   +———John W. Longman (17 Nov 1842 Washington Co, MD – 29 Dec 1915 Mt. Morris, Ogle Co, IL)  |   |   |      |   |   +———Margaret Kretzer (8 Dec 1808 MD – 1 Mar 1881 Keedysville, Washington Co, MD)  |   |  +———Minnie O. Longman (Oct 1878 MD – Jul 1937 Mt. Morris, Ogle Co, IL)      |              |   +———Francis Kennedy      |   |      +———Eliza V. Kennedy (22 Jan 1840 MD – 18 May 1904 Mt. Morris, Ogle Co, IL)          |              +———Tracy Teresia Unknown