A. Blömer, Die Vorfahren der Johanna Margarethe Schröders, Mönchengladbach 1991, S. 24
♥ = Vorfahren ♥ Diedrich KORSTEN | (1580-1637)x1610 Johannes ZIMMERMANN |♥ Anna | (1610-1658)x1636 (....-1637) Caspar ZIMMERMANN | | (1645-1700)x1672 | Adam SIEBEN > | | | (1585-1636)x1615 | | Margaretha SIEBEN | Katharina HOSTER | (1615-1677)x1636 (....-1636) Johann ZIMMERMANNS | ___________________ | (1673-....)x1701 | | | | Wilhelm THOMASSEN |___________________ | | | x1650 | | Ida THOMASSEN | ___________________ | (1650-1708)x1672 | | | | Sibylla |___________________ | x1650 |--Sibylla ZIMMERMANNS | (1705-....) ___________________ | | | ______________________|___________________ | | | Adam OTTEN | ___________________ | | x1675 | | | | |______________________|___________________ | | | Maria OTTEN | ___________________ (1675-....)x1701 | | | ______________________|___________________ | | | Gudula THEIßEN | ___________________ x1675 | | |______________________|___________________