Individual Details
Living
( - )
Families
| Spouse | Living |
| Child | Living |
| Child | Living |
| Child | Living |
| Child | Living |
| Father | Robert Valdemar Lennartz (1894 - 1942) |
| Mother | Sigrid Matilda Wallin (1893 - 1970) |
| Sibling | Ulla Birgitta Lennartz (1923 - 1997) |
| Sibling | Sten Urban Lennartz (1926 - 2008) |