A. Blömer, Die Vorfahren der Johanna Margarethe Schröders, Mönchengladbach 1991, S. 23
A. Blömer, Familien Mehls aus Beckrath, Herrath und Venrath, Mönchengladbach 2000, S. 43
♥ = Vorfahren ___________________ | ♥ Diedrich KORSTEN |___________________ | (1580-1637)x1610 Johannes ZIMMERMANN | ___________________ | (1610-1658)x1636 | | | |♥ Anna |___________________ | (....-1637)x1610 Adam ZIMMERMANN | | (1643-1710)x1678 | Johannes SIEBEN > | | | (1555-1608)x1585 | | Adam SIEBEN | N. | | | (1585-1636)x1615 | | Margaretha SIEBEN | ___________________ | (1615-1677)x1636 | | | | Katharina HOSTER |___________________ | (....-1636)x1615 |--Katharina ZIMMERMANN | (1685-....)x1710 ___________________ | | | ___________________|___________________ | | | ______________________| ___________________ | | | | | | |___________________|___________________ | | | Katharina SIEBEN | ___________________ (1650-....)x1678 | | | ___________________|___________________ | | |______________________| ___________________ | | |___________________|___________________