J. Gruch, Die evangelischen Pfarrerinnen und Pfarrer im Rheinland I, Bonn 2011, Nr. 1003 f.
_____________________________ | ____________________________|_____________________________ | Johann Christoph BIERMANN | _____________________________ | (1764-....)x1785 | | | |____________________________|_____________________________ | Johann Heinrich Jakob BIERMANN | _____________________________ | (1801-1867)x1827 | | | | ____________________________|_____________________________ | | | | | Anna Maria Luisa Elisabeth WIPPERMANN | _____________________________ | (1759-....)x1785 | | | |____________________________|_____________________________ |--Heinrich Otto BIERMANN | (1832-1884)x1860 Johann Caspar TROOST > | | (1701-1763)x1724 | Johann Gottfried TROOST | Maria Margaretha ÜLLENBERG > | | (1726-1796)x1758 (1704-....) | Johann Gottfried TROOST | | | (1758-....)x1794 | Engelbert ÜLLENBERG > | | | | (1706-1775)x1734 | | | Maria Gertrud ÜLLENBERG | Maria Katharina LANGERFELD > | | (1736-1796)x1758 (1712-1741) | Johanna Friederika TROOST | (1800-1884)x1827 | Johannes MERKEN > | | (1690-1766)x1715 | Johannes MERKEN | Maria Elisabeth VOLKMANN > | | (1724-1787)x1755 (1695-1762) | Maria Magdalena Gertrud MERKEN | (1774-....)x1794 | Johann Georg SCHUCHARD > | | (1685-1744)x1718 | Maria Christina SCHUCHARD | Elisabeth GODÉT (1732-1795)x1755 (1695-1751)