J. Roelen, Bockhefte 2, 1939, S. 74
♥ = Vorfahren ________________________ | ___________________|________________________ | Diedrich KEYSER | ________________________ | x1690 | | | |___________________|________________________ | Isaak KEYSER | ________________________ | (1690-....)x1746 | | | | ___________________|________________________ | | | | | Christina PAULUS | ________________________ | x1690 | | | |___________________|________________________ |--Johann Theodor KEYSER | (1747-....) Franz ERFFENS > | | (1590-1670)x1627 | Konrad ERFFENS | Margaretha MERKELBACH > ♥ | | (1636-1679)x1665 (1593-1637) | Johann Konrad ERFFENS | ________________________ | | (1670-1748)x1700 | | | | | Agnes BÜNTGENS |________________________ | | (....-1698)x1665 | Johanna Maria ERFFENS | ________________________ (1709-....)x1746 | | | Matthias GRAD |________________________ | | x1678 | Katharina GRAD | ________________________ (1678-....)x1700 | | | Katharina BREUER |________________________ x1678