| 1. | Jan Grootjen was born on 7 Oct 1877 in Kampen; died on 8 Oct 1938 in Amsterdam. Jan married Hendrika Catharina Timmler on 23 Oct 1902 in Kampen. Hendrika was born on 18 Nov 1877 in Harderwijk; died on 8 May 1965 in Amsterdam; was buried on 13 May 1965 in Amsterdam. [Group Sheet] [Family Chart]
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| 2. | Maria Grootjen Family/Spouse: Unknown. [Group Sheet] [Family Chart] |
| 3. | Annie Grootjen Family/Spouse: Unknown. [Group Sheet] [Family Chart] |
| 4. | Karel Grootjen Family/Spouse: Unknown. [Group Sheet] [Family Chart] |
| 5. | Cees Grootjen |
| 6. | Riek Grootjen Family/Spouse: Unknown. [Group Sheet] [Family Chart] |