L. Gerstein, Ahnentafel der Familien Schmemann und Gerstein, Hagen 1934, S. 68, 84
F.W. Bauks, Die evangelischen Pfarrer in Westfalen, Bielefeld 1980, Nr. 5334
___________________ | ___________________|___________________ | ___________________| ___________________ | | | | |___________________|___________________ | Hermann BECKHOFF | ___________________ | (1643-1693)x1669 | | | | ___________________|___________________ | | | | |___________________| ___________________ | | | | |___________________|___________________ |--Katharina Elisabeth BECKHOFF | (1686-....)x1707 Johannes VETHAKE | | | Heinrich VETHAKE | Lutgert | | (1580-....)x1606 | Heinrich VETHAKE | | | (1616-....)x1641 | Joest HOE > | | | | (1555-....)x1582 | | | Anna HOE | Elske TAPPE | | (1585-....)x1606 | Anna Katharina VETHAKE | ___________________ (1644-1702)x1669 | | | ___________________|___________________ | | | Maria HEIMSOTH | ___________________ x1641 | | |___________________|___________________