1840 - 1910 (70 jaar)
ca. 1866-1875
| Gerbrand Hendrik Ketz | |
| G: | ca. 1866 |
| Dieren | |
| O: | 14 jun 1875 |
| IJsselmonde | |
ca. 1868-1869
| Christina Willemina Ketz | |
| G: | ca. jun 1868 |
| O: | 21 jun 1869 |
| Moerkapelle | |
1869-1941
| Dirkje Ketz | |
| G: | 20 sep 1869 |
| Moerkapelle | |
| O: | 29 jan 1941 |
1869-
| Willem Frederik van Zijl | |
| G: | 31 okt 1869 |
| Arkel | |
| H: | 3 dec 1890 |
| Rotterdam | |
1871-1875
| Wijntje Ketz | |
| G: | 31 jul 1871 |
| Kralingen | |
| O: | 23 mrt 1875 |
| IJsselmonde | |
| Johanna Ketz | |
| G: | 27 feb 1874 |
| Kralingen | |
| Martinus van Walsum | |
| G: | ca. 1873 |
| Delfshaven | |
| H: | 8 aug 1894 |
| Rotterdam | |
1876-
| Wijntje Ketz | |
| G: | 12 jan 1876 |
| Kralingen | |
ca. 1873-vóór 1900
| Sander Christiaan Boerlage | |
| G: | ca. 1873 |
| Rotterdam | |
| H: | 18 apr 1894 |
| Kralingen | |
| O: | vóór 1900 |
ca. 1877-
| Franciscus Adrianus Beckmann | |
| G: | ca. 1877 |
| Rotterdam | |
| H: | 25 apr 1900 |
| Rotterdam | |
1879-1922
| Maria Ketz | |
| G: | 27 jun 1879 |
| Kralingen | |
| O: | 10 jun 1922 |
| Poortugaal | |
ca. 1880-
| Jan van der Molen | |
| G: | ca. 1880 |
| Zijpe | |
| H: | 3 jul 1907 |
| Rotterdam | |
1909-
| Gerardina Hendrika Ketz | |
| G: | 2 jan 1909 |
| Rotterdam | |
ca. 1908-
| Tjip van der Werff | |
| G: | ca. 1908 |
| Maria Ketz | |
| G: | 29 apr 1911 |
| Rotterdam | |
| O: | 26 okt 1932 |
| Rotterdam | |
1938-1946
| Gerrebrand Hendrik Ketz | |
| G: | 29 sep 1938 |
| Rotterdam | |
| O: | 28 sep 1946 |
| Rotterdam | |
1940-1940
| Dirk Bernardus Ketz | |
| G: | 12 jan 1940 |
| Rotterdam | |
| O: | 28 mrt 1940 |
| Rotterdam | |
| Dirk Bernardus Ketz | |
| G: | 12 mei 1913 |
| Rotterdam | |
| O: | 1 nov 1982 |
| Rotterdam | |
1916-1994
| Anna Koster | |
| G: | 27 mei 1916 |
| Rotterdam | |
| H: | ca. 1952 |
| O: | 29 jul 1994 |
| Rotterdam | |
1916-1993
| Helena Christina Maria Ketz | |
| G: | 13 mei 1916 |
| Rotterdam | |
| O: | 21 aug 1993 |
| Rotterdam | |
ca. 1926-1995
| H. Vermeer | |
| G: | ca. 1926 |
| Rotterdam | |
| H: | ca. 1948 |
| Rotterdam | |
| O: | 2 okt 1995 |
| Rotterdam | |
1917-1920
| Gerrebrand Hendrik Ketz | |
| G: | 2 jul 1917 |
| Rotterdam | |
| O: | 8 apr 1920 |
| Rotterdam | |
1920-1921
| Pieternella Maria Ketz | |
| G: | 2 jun 1920 |
| Rotterdam | |
| O: | 4 jul 1921 |
| Rotterdam | |
1922-1932
| Pieternella Maria Ketz | |
| G: | 1 feb 1922 |
| Rotterdam | |
| O: | 19 mei 1932 |
| Rotterdam | |
| Johanna Maria Ketz | |
| G: | 7 mrt 1926 |
| Rotterdam | |
| O: | 2 apr 2010 |
| Selkirk Manitoba (Canada) | |
ca. 1922-1963
| Edward Domansky | |
| G: | ca. 1922 |
| H: | 14 nov 1945 |
| Rotterdam | |
| O: | 23 nov 1963 |
ca. 1930-1993
| Peter Yanchycki | |
| G: | ca. 1930 |
| H: | ca. 1970 |
| O: | 1 sep 1993 |
| Gerrebrand Hendrik Ketz | |
| G: | 22 jul 1883 |
| Kralingen | |
| Petronella Maria Doorewaard | |
| G: | 11 mei 1886 |
| Rotterdam | |
| H: | 6 feb 1907 |
| Rotterdam | |
1886-
| Christina Ketz | |
| G: | 28 sep 1886 |
| Rotterdam | |
ca. 1883-
| Adrianus Beckmann | |
| G: | ca. 1883 |
| Rotterdam | |
| H: | 7 nov 1906 |
| Rotterdam | |
|
| Dirk Bernardus Ketz | |
| G: | 14 mrt 1840 |
| Angerlo | |
| O: | 5 nov 1910 |
| Rotterdam | |
1845-ca. 1918
| Derkje Wentink | |
| G: | 1 mei 1845 |
| Zelhem | |
| H: | 30 sep 1865 |
| Rheden | |
| O: | ca. 1918 |
