| | | | | | Wilhelm Martin Theodor Menke 1868–1910 Jeanette van Engelen 1869–1933 | | | | Johann Friedrich Christian Menke 1843–… Sophia Maria Dorothea Wilhelmina Dettmann …–… | | |
| | | Johannes van Engelen 1828–1897 | | |
|
|
| | | Paul Alfred Ritscher 1856–1920 Henriette van Engelen 1859–1931 | | | | August Wilhelm Julius Ritscher 1820–1911 Emilie Agnes Sickert 1829–1867 | | |
| | | Johannes van Engelen 1828–1897 | | |
|
|
|
|