| Father | Sven Martin Svensson (1884 - 1969) |
| Mother | Anna Potentia Hammargren (1888 - 1971) |
| Sibling | Ture Adolf Hammargren (1912 - 1982) |
| Sibling | Hugo Alexander Hammargren (1915 - 1975) |
| Sibling | Carl Hammargren (1916 - 2000) |
| Sibling | Harry Hammargren (1917 - ) |
| Sibling | Margareta (Greta) Hammargren (1919 - 2008) |
| Sibling | Ebba Hammargren (1920 - 1937) |
| Sibling | Kjell Viktor Gunnar Hammargren (1922 - 1978) |
| Sibling | Arnold Hammargren (1923 - ) |
| Sibling | Runa Hammargren (1924 - ) |
| Sibling | Gunborg Hammargren (1926 - ) |
| Sibling | Engbert Hammargren (1929 - ) |