Children |
| 1. Gerardina Hendrika Ketz, b. 2 Jan 1909, Rotterdam |
| 2. Maria Ketz, b. 29 Apr 1911, Rotterdam d. 26 Oct 1932, Rotterdam (Age 21 years) |
+ | 3. Dirk Bernardus Ketz, b. 12 May 1913, Rotterdam d. 1 Nov 1982, Rotterdam (Age 69 years) |
+ | 4. Helena Christina Maria Ketz, b. 13 May 1916, Rotterdam d. 21 Aug 1993, Rotterdam (Age 77 years) |
| 5. Gerrebrand Hendrik Ketz, b. 2 Jul 1917, Rotterdam d. 8 Apr 1920, Rotterdam (Age 2 years) |
| 6. Pieternella Maria Ketz, b. 2 Jun 1920, Rotterdam d. 4 Jul 1921, Rotterdam (Age 1 year) |
| 7. Pieternella Maria Ketz, b. 1 Feb 1922, Rotterdam d. 19 May 1932, Rotterdam (Age 10 years) |
+ | 8. Johanna Maria Ketz, b. 7 Mar 1926, Rotterdam d. 2 Apr 2010, Selkirk Manitoba (Canada) (Age 84 years) |
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