| | Albert Theodor Franz Friedrich 1860–1930 Minna Henriette Auguste Biedermann 1868–1955 | | |
| | Christoph Andreas Friedrich 1821–1905 Rosiana Sophie Caroline Neubert 1822–1894 | | |
| | Peter Christian Friedrich 1781–1849 Johanna S. Lehmann 1774–1843 | | |
| | Johann Konrad Friedrich – | | |