A. Blömer, Ahnenliste des Gottfried Quack (1794-1872) zu Herrath, Mönchengladbach 1996, S. 28
♥ = Vorfahren Johannes PÖSTGENS | (1635-....)x1661 Konrad PÖSTGENS | Elisabeth ZIMMERMANN > | (1665-1729)x1695 (1640-1677) Albert PÖSTGENS | | (1701-1759)x1728 | Albert SASSERATH > ♥ | | | (1624-1684)x1649 | | Agnes SASSERATH | Helena KAMPHAUSEN > | (1662-1728)x1695 (1624-1680) Heinrich PÖSTGENS | | (1729-1792)x1764 | ♥ Jakob MAUS > ♥ | | | (1622-1695)x1647 | | Heinrich MAUS |♥ Gertrud ZIMMERMANN > ♥ | | | (1658-1728)x1688 (1625-1686) | | Anna MAUS | | (1699-....)x1728 | Nikolaus CLAßEN > | | | (1645-1723)x1664 | | Christina CLAßEN | Sibylla BLEECK | (1665-1734)x1688 (....-1670) |--Wilhelm PÖSTGENS | (1766-....)x1802 Tillmann WINTZEN > ♥ | | (1600-1672)x1625 | Wilhelm WINTZEN | Adriana ARETZ | | (1633-1692)x1658 (....-1658) | Wilhelm WINTZEN | | | (1671-1759)x1726 | Johannes ENGELS > | | | | (1610-1680)x1632 | | | Margaretha ENGELS | Katharina SCHERGENS > ♥ | | (1633-1675)x1658 (1610-1680) | Sophia WINTZEN | (1733-1794)x1764 | Wilhelm SASSERATH > | | (1633-1682)x1654 | Engel SASSERATH | Katharina SCHERGENS > ♥ | | (1656-1713)x1681 (1632-1684) | Beatrix SASSERATH | (1691-1764)x1726 | ♥ Nikolaus KREMERS > ♥ | | (1630-1681)x1650 | Helena KREMERS |♥ Beatrix WELTERS > ♥ (1658-1712)x1681 (1630-1681)