| Father | Frank Henry Lehnen ( - 1943) |
| Mother | Barbara Reichert (1881 - 1937) |
| Sibling | Francis Margaret Lehnen (1899 - 1992) |
| Sibling | Cecelia Ann Lehnen (1901 - 1998) |
| Sibling | Edith Elizabeth Lehnen (1903 - 1988) |
| Sibling | Peter John Lehnen (1900 - 1974) |
| Sibling | Leo Lehnen (1904 - 1982) |
| Sibling | Arnold Michael Lehnen (1906 - 1980) |
| Sibling | Theodore Henry Lehnen (1907 - 1988) |
| Sibling | Veronica K Lehnen (1911 - 1987) |
| Sibling | Martha Mary Lehnen (1915 - 2002) |
| Sibling | Isadore R "Izzy" Lehnen (1917 - 2002) |
| Sibling | Clement A Lehnen (1918 - 1987) |