Hardt, Das Geschlecht Hardt aus Lennep, o. O. [ca. 1950], S. 7
C. Pick, Familienbuch Lennep 1654-1809, Plaidt 2014, S. 1010
__ | __|__ | Peter HARDT | __ | (1560-....) | | | |__|__ | Johannes HARDT | __ | (1585-1655)x1607 | | | | __|__ | | | | | N. | __ | | | | |__|__ |--Bernhard HARDT | (1616-1677)x1640 __ | | | __|__ | | | ___________________| __ | | | | | | |__|__ | | | Christina | __ x1607 | | | __|__ | | |___________________| __ | | |__|__