| Anna Koster was born on 27 May 1916 in Rotterdam (daughter of Cornelis Martinus Koster and Maria Huizer); died on 29 Jul 1994 in Rotterdam. Anna married Dirk Bernardus Ketz about 1952 (burgerlijk huwelijk). Dirk (son of Gerrebrand Hendrik Ketz and Petronella Maria Doorewaard) was born on 12 May 1913 in Rotterdam; died on 1 Nov 1982 in Rotterdam. [Group Sheet] [Family Chart]
Children:
- Gerrebrand Hendrik Ketz was born on 29 Sep 1938 in Rotterdam; died on 28 Sep 1946 in Rotterdam.
- Dirk Bernardus Ketz was born on 12 Jan 1940 in Rotterdam; died on 28 Mar 1940 in Rotterdam.
- Cornelis Marinus Ketz
- Bernardus Hendrik Ketz
- Gerrebrandina Hendrika Ketz
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1916 - 1994 (78 years)