| Children |
| + | 1. Marten Kerkstra b. 11 January 1878, Ulrum, Groningen, Netherlands  d. 24 November 1954 (Age 76 years) |
| | 2. Okko Kerkstra b. 7 April 1879, Ulrum, Groningen, Netherlands  |
| | 3. Jan Kerkstra b. 24 December 1880, Zoutkamp, Ulrum, Groningen, Netherlands  |
| | 4. Willem Kerkstra b. 22 November 1882, Zoutkamp, Ulrum, Groningen, Netherlands  |
| | 5. Johannes Kerkstra b. 11 July 1885, Ulrum, Groningen, Netherlands  d. 8 July 1889, Vierhuizen, Ulrum, Groningen, Netherlands (Age 3 years) |
| | 6. Antje Kerkstra b. 16 March 1887, Zoutkamp, Ulrum, Groningen, Netherlands  |
| | 7. Hilbrand Kerkstra b. 1 March 1889, Ulrum, Groningen, Netherlands  |
|