| Father | Frederick Schlaht (1844 - 1905) |
| Mother | Catharina Christianna Hausauer (1850 - 1922) |
| Sibling | Peter Schlaht (1880 - 1881) |
| Sibling | Philipp Schlaht (1876 - 1943) |
| Sibling | Katharina Schlaht (1879 - 1945) |
| Sibling | Christian Michael Schlaht (1879 - 1955) |
| Sibling | Charlotte Schlaht (1885 - 1945) |
| Sibling | Friedrich Schlaht (1887 - 1957) |
| Sibling | Rosina Schlaht (1875 - 1948) |
| Sibling | Karolina Schlaht (1881 - 1910) |
| Sibling | Johann Schlaht (1873 - 1930) |
| Sibling | Catharina Schlaht (1874 - 1874) |
| Sibling | Margaret Schlaht (1888 - 1950) |
| Sibling | Jacob Schlaht (1884 - 1906) |
| Sibling | Christina Schlaht (1890 - 1975) |