1849 - 1921 (72 jaar)
1945-2009
| Siebren Erik Beelaerts van Blokland | |
| G: | 14 jan 1945 |
| Wassenaar | |
| O: | 14 jul 2009 |
| Blaricum | |
1915-1992
| Ellen Hazelhoff Roelfzema | |
| G: | 27 jan 1915 |
| Soerabaya, Java | |
| O: | 1992 |
1911-1997
| Cornelis Hendrik Beelaerts van Blokland | |
| G: | 25 jul 1911 |
| Den Haag | |
| H: | 1937 |
| O: | 16 jan 1997 |
| Den Haag | |
1947-2010
| Erik Hazelhoff Roelfzema Jr | |
| G: | 17 feb 1947 |
| Den Haag | |
| O: | 11 feb 2010 |
| Utrecht | |
| Patricia Steur | |
| H: | 1990 |
1917-2007
| Siebren Erik Hazelhoff Roelfzema | |
| G: | 3 apr 1917 |
| Soerabaya, Java | |
| O: | 26 sep 2007 |
| Ahuala, Hawaï | |
| Margaret Cooper | |
| H: | 1945-1965 |
| Karin Steensma | |
| H: | 1965-2007 |
1890-1962
| Siebren Erik Hazelhoff Roelfzema | |
| G: | 19 apr 1890 |
| Amsterdam | |
| O: | 20 dec 1962 |
| Wassenaar | |
1893-1982
| Cornelia Francisca Vreede | |
| G: | 29 jun 1893 |
| Sidoarjo, Indonesië | |
| H: | 31 mrt 1914 |
| Soerabaya, Java | |
| O: | feb 1982 |
| 's-Gravenhage | |
|
| Karel Agathon Willem Lodewijk Hazelhoff Roelfzema | |
| G: | 31 mrt 1849 |
| Zevenaar | |
| O: | 8 sep 1921 |
| Rheden | |
1859-1935
| Elizabeth Wilhelmina van Loon | |
| G: | 18 dec 1859 |
| Utrecht | |
| H: | 17 jun 1886 |
| Amsterdam | |
| O: | 7 mei 1935 |
| 's-Gravenhage | |
