+———Jacob Heller (19 Dec 1777 MD – 29 Mar 1848)      |  +———Thomas Douglas Heller (2 Mar 1824 Hagerstown, Washington Co, MD – )  |   |      |   +———Isabella McKinzie (1780 PA – )  |      William F. Heller (1849 VA – )  |      +———Eliza Knock (1827 NY – )