C. Pick, Familienbuch Lüttringhausen 1670-1809, Wuppertal 2005, S. 649, 1487
C. Pick, Familienbuch Lennep 1654-1809, Plaidt 2014, S. 1963
_____________________ | Johann ÖLVERMANN |_____________________ | (1634-1699)x1655 Johannes ÖLVERMANN | | (1674-1732)x1701 | Peter HACKENBERG | | | (1604-1677)x1635 | | Christina HACKENBERG | N. | (1635-1711)x1655 Johann Jakob ÖLVERMANN | _____________________ | (1714-1760)x1738 | | | | Caspar HAMMACHER |_____________________ | | | (1652-1695)x1679 | | Katharina HAMMACHER | | (1680-1735)x1701 | Caspar WINDGASSEN > | | | (1632-1695)x1659 | | Katharina WINDGASSEN | Clara FRIELINGHAUS > | (1660-1733)x1679 (1631-1695) |--Johann Wilhelm ÖLVERMANN | (1739-1786)x1771 _____________________ | | | Peter FUHRMANN |_____________________ | | (1642-1717)x1669 | Johannes CLEUSER | _____________________ | | (1673-1749)x1700 | | | | | Katharina von CLAUSEN |_____________________ | | (1647-1715)x1669 | Anna Maria CLEUSER | _____________________ (1717-1791)x1738 | | | ________________________|_____________________ | | | Christina HACKENBERG | _____________________ (1680-1764)x1700 | | |________________________|_____________________