Hardt, Das Geschlecht Hardt aus Lennep, o. O. [ca. 1950], S. 6
Peter HARDT | (1560-....) Johannes HARDT | N. | (1585-1655)x1607 Arnold HARDT | ___________________ | (1608-1668)x1650 | | | | Christina |___________________ | x1607 Johannes HARDT | ___________________ | (1657-1705)x1693 | | | | ___________________|___________________ | | | | | Gertrud | ___________________ | (1624-....)x1650 | | | |___________________|___________________ |--Peter HARDT | (1697-1742)x1728 ___________________ | | | ___________________|___________________ | | | ___________________| ___________________ | | | | | | |___________________|___________________ | | | Maria HACKENBERG | ___________________ (1670-1729)x1693 | | | ___________________|___________________ | | |___________________| ___________________ | | |___________________|___________________