Petronella married Gerrebrand Hendrik Ketz on 6 Feb 1907 (burgerlijk huwelijk) in Rotterdam. Gerrebrand (son of Dirk Bernardus Ketz and Derkje Wentink) was born on 22 Jul 1883 in Kralingen. [Group Sheet] [Family Chart]

1. Gerardina Hendrika Ketz was born on 2 Jan 1909 in Rotterdam.
2. Maria Ketz was born on 29 Apr 1911 in Rotterdam; died on 26 Oct 1932 in Rotterdam.
3. Dirk Bernardus Ketz was born on 12 May 1913 in Rotterdam; died on 1 Nov 1982 in Rotterdam.
4. Helena Christina Maria Ketz was born on 13 May 1916 in Rotterdam; died on 21 Aug 1993 in Rotterdam.
5. Gerrebrand Hendrik Ketz was born on 2 Jul 1917 in Rotterdam; died on 8 Apr 1920 in Rotterdam; was buried in Graf nr. R..
6. Pieternella Maria Ketz was born on 2 Jun 1920 in Rotterdam; died on 4 Jul 1921 in Rotterdam.
7. Pieternella Maria Ketz was born on 1 Feb 1922 in Rotterdam; died on 19 May 1932 in Rotterdam.
8. Johanna Maria Ketz was born on 7 Mar 1926 in Rotterdam; died on 2 Apr 2010 in Selkirk Manitoba (Canada).

Leendert married Maria van Schijndel. [Group Sheet] [Family Chart]