| 1. | Willem Karel Frederik Coersen died on 28 Jun 1897 in Amsterdam. Family/Spouse: Johanna Hendrika Jansen. Johanna (daughter of Gerrit Jansen and Wilhelmina Lammers) was born on 12 Apr 1864 in Amsterdam; died on 5 Dec 1947 in Amsterdam. [Group Sheet] [Family Chart]
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| 2. | Willem Karel Frederik Coersen |
| 3. | Ida Coersen |
| 4. | Gerhard Coersen |
| 5. | Wilhelmina Coersen |
| 6. | Janna Christina Coersen Janna married Cornelis Pieter Meijning on 14 May 1914 in Amsterdam. Cornelis (son of Cornelis Meijning and Klara Geertruida Hooft) was born on 6 Jun 1888 in Amsterdam; died on 1 Jul 1949 in Beek. [Group Sheet] [Family Chart]
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| 7. | Hendrik Jacob Coersen |
| 8. | Cornelis Pieter Meijning Cornelis married Marie Dekker on 29 May 1941 (Civil) in Amsterdam. Marie (daughter of Cornelis Dekker and Hendriekje van Harten) was born on 17 Aug 1917 in Weesperkarspel; died on 5 Apr 2017 in Amsterdam. [Group Sheet] [Family Chart]
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| 9. | Family/Spouse: Hans Peter Umlandt. [Group Sheet] [Family Chart]
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