+———Henry Schroeder ( – 1888 Wayne Co, IN)      |  +———Henry Schrader (8 Sep 1817 Washington Co, MD – 1 Mar 1902 Leaf River, Ogle Co, IL)  |   |          |   |   +———Johann John Langmann (1749 Hesse-Darmstadt, Germany – 2 May 1838 Rohrersville, Washington Co, MD)  |   |   |  |   +———Catherine Longman (bef 1799 Hagerstown, Washington Co, MD – )  |       |      |       +———Eve Unknown (1758 Washington Co, MD – )  |      Harriet Sophia Shrader (20 Sep 1846 Leaf River, Ogle Co, IL – 20 Jun 1887)  |          |   +———David Iler  |   |  +———Mahalia Iler (2 Aug 1821 Sharpsburg, Washington Co, MD – 10 Aug 1901 Leaf River, Ogle Co, IL)      |          +———Mary Harmon