A. Blömer, Ahnenliste des Gottfried Quack (1794-1872) zu Herrath, Mönchengladbach 1996, S. 10
A. Blömer, Die Familie Quack aus Schaan, Mönchengladbach 1996, S. 35
♥ = Vorfahren Heinrich SCHRÖDERS > | (1520-1563) Johannes HINTZEN | N. | (1560-....)x1600 Winand HINTZEN | | (1602-1677)x1628 | ♥ Jakob WELTERS > ♥ | | | (1555-1607)x1580 | | WELTERS |♥ Petronella BRABENDER | (1580-....)x1600 (....-1608) Wilhelm HINTZEN | _______________________ | (1645-1699)x1672 | | | | ___________________|_______________________ | | | | | Gertrud | _______________________ | (1610-....)x1628 | | | |___________________|_______________________ |--Helena HINTZEN | (1677-....)x1712 _______________________ | | | ___________________|_______________________ | | | Otto SCHUMACHER | _______________________ | | (....-1677)x1636 | | | | |___________________|_______________________ | | | Sophia SCHUMACHER | _______________________ (1643-1711)x1672 | | | ___________________|_______________________ | | | Johanna | _______________________ (....-1677)x1636 | | |___________________|_______________________