| 1. Jacob Carel Martens, b. 5 Oct 1736, Utrecht, Utrecht, Netherlands d. 7 Feb 1826, Utrecht, Utrecht, Netherlands (Age 89 years) | | 2. Anna Maria Martens, b. 3 Nov 1739, Utrecht, Utrecht, Netherlands d. 3 Dec 1767 (Age 28 years) | | 3. Margareta Alleta Martens, b. 3 Nov 1742, Utrecht, Utrecht, Netherlands d. 2 Apr 1819, Utrecht, Utrecht, Netherlands (Age 76 years) | | 4. Engelbertha Elisabeth Martens, b. 6 Jan 1746, 's-Gravenhage, Zuid-Holland, Netherlands d. 17 Jan 1826, Utrecht, Utrecht, Netherlands (Age 80 years) | | 5. Cornelia Jacoba Martens, b. 23 Aug 1747, 's-Gravenhage, Zuid-Holland, Netherlands d. 3 Dec 1831, Utrecht, Utrecht, Netherlands (Age 84 years) | | 6. Gualtherus Johannes Martens, b. 18 Nov 1748, Utrecht, Utrecht, Netherlands d. 23 Jul 1794, Utrecht, Utrecht, Netherlands (Age 45 years) | | 7. David Johan Martens, b. 3 Aug 1751, Utrecht, Utrecht, Netherlands d. 17 Aug 1811, Utrecht, Utrecht, Netherlands (Age 60 years) | |