
| Jacob Carel Frederik van Heerdt | |
| B: | 18 Nov 1817 |
| Kampen, Overijssel, Netherlands | |
| D: | 10 May 1880 |
| Delft, South Holland, Netherlands | |
| Jurjan Nicolaas van Heerdt | |
| B: | 17 Nov 1821 |
| Kampen, Overijssel, The Netherlands | |
| D: | 15 Dec 1859 |
| Deventer, Overijsel, Neth. | |
| Helena Louisa van Heerdt | |
| B: | 3 Jul 1824 |
| Kampen, Overijssel, Netherlands | |
| D: | 19 Jun 1861 |
| Bergen op Zoom, North Brabant, Netherlands | |
| Willem Hendrik van Heerdt | |
| B: | 29 Jun 1826 |
| Kampen, Overijsel, Neth. | |
| D: | 13 Jul 1906 |
| Cornelis Joan van Heerdt | |
| B: | 15 Oct 1828 |
| Kampen, Overijsel, Neth. | |
| D: | 15 Mar 1831 |
| Cornelia Charlotta van Heerdt | |
| B: | 20 May 1837 |
| Zwolle, Overijsel, Neth. | |
| D: | 28 Dec 1838 |
| Cornelis Joan Hendrik van Heerdt | |
| B: | 28 May 1832 |
| Kampen, Overijsel, Neth. | |
| D: | 28 May 1834 |
| Zwolle, Gelderland, Nederlands | |
| Aleida Maria Baroness van Hemert | |
| B: | 11 Nov 1802 |
| Zwolle, Overijsel, Neth. | |
| D: | 20 Mar 1884 |
| Arnhem, Gelderland, Netherlands | |