H.F. Macco, Geschichte und Genealogie der Familien Peltzer, Aachen 1901, S. 287
H.L. von Beckerath, Stammbaum von Beckerath nebst Descendenz, Krefeld 1903, S. 117, 172, 200
__________________________ | Bernhard Heinrich BERKENKAMP |__________________________ | x1717 Konrad Hartwig BERKENKAMP | __________________________ | (1727-1821)x1765 | | | | Anna Elisabeth von EYL |__________________________ | x1717 Johann Heinrich Christoph BERKENKAMP | __________________________ | (1765-....)x1802 | | | | ___________________________________|__________________________ | | | | | Anna Gertrud Christina Friederika FELDERHOFF | __________________________ | (1740-....)x1765 | | | |___________________________________|__________________________ |--Alwina Charlotte Friederika BERKENKAMP | (1822-1887)x1843 Gerhard Isaak HAENTJENS | | (1679-1717)x1703 | Gerhard HAENTJENS | Elisabeth JANSEN | | (1704-....)x1730 (....-1717) | Johann Friedrich HAENTJENS | | | (1732-1803)x1762 | Johann HOPMANN | | | | x1708 | | | Anna Christina Elisabeth HOPMANN | Johanna BUIJS | | (1708-....)x1730 | Christina Friederika HAENTJENS | (1780-....)x1802 | Thomas Heinrich KELLER > | | (1675-1742)x1703 | Johann Heinrich KELLER | Cornelia WINTGENS > | | (1704-1776)x1732 (1684-1738) | Maria Luisa KELLER | (1739-....)x1762 | Johann LEYENDECKER | | x1707 | Charlotte Petronella LEYENDECKER | Helena von COUTTEN (1707-1759)x1732