A. Blömer, Die Viersener Vorfahren der Maria Catharina Weyer (1800-1862), Mönchengladbach 1999, S. 16
♥ = Vorfahren Johann BREDAHL > | (1640-1700)x1661 Adam BREDAHL | Gertrud SCHIPPERS | (1667-1718)x1694 (1638-1696) Matthias BREDAHL | | (1696-1750)x1716 | Matthias LAUFFS > | | | (1626-1675)x1653 | | Gertrud LAUFFS | Agnes WIMMERS > ♥ | (1668-1757)x1694 (1632-1675) Adam BREDAHL | ____________________ | (1721-1758)x1751 | | | | ___________________|____________________ | | | | | Katharina DOCKES | ____________________ | (1686-1751)x1716 | | | |___________________|____________________ |--Gertrud BREDAHL | (1751-....) ____________________ | | | ___________________|____________________ | | | Johannes BOLTEN | ____________________ | | (1683-1750)x1711 | | | | |___________________|____________________ | | | Magdalena WEYER | (1720-1805)x1751 | Hermann WEYER > | | (1610-....)x1635 | Heinrich WEYER | Maria | | (1644-1710)x1667 | Gertrud WEYER | (1680-1747)x1711 | Peter HAGENS | | x1640 | Helena HAGENS | Grietgen (1645-1711)x1667