+———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)  |      Harry F. Longman (29 Dec 1872 Keedysville, Washington Co, MD – 1941 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