A. Blömer, Ahnenliste Frau Hildegard Kremers geb. Wallbrecher, Mönchengladbach 1995, S. 13
________________________ | ___________________________|________________________ | ________________________________| ________________________ | | | | |___________________________|________________________ | Johann Hermann ACKERMANN | ________________________ | (1703-1781)x1727 | | | | ___________________________|________________________ | | | | |________________________________| ________________________ | | | | |___________________________|________________________ |--Johann Wilhelm Leopold ACKERMANN | (1733-1797)x1753 ________________________ | | | ___________________________|________________________ | | | Wilhelm Christian RITTINGHAUS | ________________________ | | (1670-1733)x1700 | | | | |___________________________|________________________ | | | Gertrud Katharina RITTINGHAUS | (1702-1746)x1727 | Johann Wilhelm HYMMEN > | | (1615-1676)x1640 | Wilhelm Christian HYMMEN | DORNSEIFFEN > | | (1643-1727)x1672 (1618-....) | Maria Margaretha HYMMEN | ________________________ (1673-1741)x1700 | | | Katharina BRENSCHEID |________________________ (1650-1727)x1672