Children |
| 1. Jacob Carel Frederik van Heerdt, b. 3 Feb 1839, Zwolle, Overijssel, Nederland d. 25 Aug 1889, Ambarawa, Oengaran, Semarang, Nederlands-Indiƫ (Age 50 years) |
| 2. Jacob Carel Frederik van Heerdt, b. 18 Nov 1817, Kampen, Overijssel, Netherlands d. 10 May 1880, Delft, South Holland, Netherlands (Age 62 years) |
| 3. Jurjan Nicolaas van Heerdt, b. 17 Nov 1821, Kampen, Overijssel, The Netherlands d. 15 Dec 1859, Deventer, Overijsel, Neth. (Age 38 years) |
| 4. Helena Louisa van Heerdt, b. 3 Jul 1824, Kampen, Overijssel, Netherlands d. 19 Jun 1861, Bergen op Zoom, North Brabant, Netherlands (Age 36 years) |
| 5. Willem Hendrik van Heerdt, b. 29 Jun 1826, Kampen, Overijsel, Neth. d. 13 Jul 1906 (Age 80 years) |
| 6. Cornelis Joan van Heerdt, b. 15 Oct 1828, Kampen, Overijsel, Neth. d. 15 Mar 1831 (Age 2 years) |
| 7. Cornelia Charlotta van Heerdt, b. 20 May 1837, Zwolle, Overijsel, Neth. d. 28 Dec 1838 (Age 1 year) |
| 8. Cornelis Joan Hendrik van Heerdt, b. 28 May 1832, Kampen, Overijsel, Neth. d. 28 May 1834, Zwolle, Gelderland, Nederlands (Age 2 years) |
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