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 Gottfried TROOST | ___________________________ | | x1794 | | | | |____________________________|___________________________ | | | Johanna Friederika TROOST | (1800-1884)x1827 | Johannes MERKEN > | | (1690-1766)x1715 | Johannes MERKEN | Maria Elisabeth VOLKMANN > | | (1725-1787)x1755 (1695-1762) | Maria Magdalena Gertrud MERKEN | (1774-....)x1794 | Johann Georg SCHUCHARD > | | (1685-1744)x1718 | Maria Christina SCHUCHARD | Elisabeth GODÉT (1732-....)x1755 (1695-1751)