Teilhaber der Firma „R. L. Friderichs & Co.“ in Elberfeld
A. Weyersberg, Chronik der Familie Weyersberg zu Solingen, Elberfeld 1893, S. 31
__ | ___________________________|__ | _______________________________| __ | | | | |___________________________|__ | Karl Bernhard FRIDERICHS | __ | (1786-1869)x1819 | | | | ___________________________|__ | | | | |_______________________________| __ | | | | |___________________________|__ |--Rudolf Ludwig FRIDERICHS | (1826-....)x1853 __ | | | Wilhelm NENNINGHOVEN |__ | | x1750 | Johann Heinrich NENNINGHOVEN | __ | | (1750-....)x1779 | | | | | Maria Katharina DRINHAUS |__ | | x1750 | Johanna Antonetta NENNINGHOVEN | __ (1794-1827)x1819 | | | Johann Peter KÜLLER |__ | | (1729-1803) | Anna Christina KÖLLER | __ (1758-....)x1779 | | | N. |__