Children |
| 1. Willem Johannes de Rooij, b. Thu 23 Apr 1868, Groningen, Groningen, Nederland d. Fri 24 Jul 1868, Groningen, Groningen, Nederland (Age 0 years) |
| 2. Anna Maria de Boer, b. Mon 20 May 1872, Kollumerland, Friesland, Nederland d. Yes, date unknown |
| 3. Jelle de Boer, b. Sun 20 Sep 1874, Kollumerland, Friesland, Nederland d. Sun 19 Jun 1898, Bellingwolde, Groningen, Nederland (Age 23 years) |
| 4. Willem de Boer, b. Fri 06 Dec 1878, Wonseradeel, Friesland, Nederland d. Yes, date unknown |
| 5. Tjeerd de Boer, b. Mon 18 Jun 1883, Loppersum, Groningen, Nederland d. Thu 21 Jun 1883, Loppersum, Groningen, Nederland (Age 0 years) |
| 6. Simon Petrus de Boer, b. Mon 09 Jun 1884, Workum, Friesland, Nederland d. Yes, date unknown |
+ | 7. Sara de Boer, b. Fri 17 Dec 1886, Vriescheloo, Bellingwolde, Groningen, Nederland d. Yes, date unknown |
| 8. Jacoba Cornelia de Boer, b. Thu 06 Dec 1888, Vriescheloo, Bellingwolde, Groningen, Nederland d. Yes, date unknown |
| 9. Johannes de Boer, b. Sun 26 Apr 1891, Vriescheloo, Bellingwolde, Groningen, Nederland d. Sun 01 Dec 1918, Groningen, Groningen, Nederland (Age 27 years) |
| 10. Jacoba Cornelia de Boer, b. Sun 06 Aug 1893, Bellingwolde, Groningen, Nederland d. Yes, date unknown |
|