Individual Details
Living
( - )
Families
| Spouse | Living |
| Father | Jannes POSTMA (1890 - 1975) |
| Mother | Jitske TENHAGE (1887 - 1960) |
| Sibling | Bartha POSTMA (1912 - 2006) |
| Sibling | Derk POSTMA (1913 - 1993) |
| Sibling | Cornelia POSTMA (1914 - 2006) |
| Sibling | Bieuwkje POSTMA (1916 - 2007) |
| Sibling | Hein POSTMA (1918 - ) |
| Sibling | Jentje POSTMA (1919 - 2012) |
| Sibling | Jannes POSTMA (1924 - 1992) |
| Sibling | Rense POSTMA (1931 - 2013) |