L. Gerstein, Ahnentafel der Familien Schmemann und Gerstein, Hagen 1934, S. 67 f., 77
___________________ | ___________________|___________________ | Simon BALTHASAR | ___________________ | (....-1680)x1655 | | | |___________________|___________________ | Johann Heinrich BALTHASAR | ___________________ | (1664-1741)x1691 | | | | ___________________|___________________ | | | | | Katharina SCHULTE | ___________________ | (1635-1689)x1655 | | | |___________________|___________________ |--Katharina Maria BALTHASAR | (1712-1775)x1745 ___________________ | | | ___________________|___________________ | | | Hermann BECKHOFF | ___________________ | | (1643-1693)x1669 | | | | |___________________|___________________ | | | Anna Katharina BECKHOFF | (1670-1760)x1691 | Heinrich VETHAKE > | | (1580-....)x1606 | Heinrich VETHAKE | Anna HOE > | | (1616-....)x1641 (1585-....) | Anna Katharina VETHAKE | ___________________ (1644-1702)x1669 | | | Maria HEIMSOTH |___________________ x1641