Children |
| 1. Aafje Margaretha Koopmans, b. 10 Apr 1867, Oldeboorn, FR, NLD |
| 2. Grietje Sandina Koopmans, b. 26 Aug 1869, Utingeradeel, FR, NLD d. 03 Jul 1871, Utingeradeel, FR, NLD (Age 1 year) |
| 3. Grietje Sandina Koopmans, b. 31 Aug 1873, Utingeradeel, FR, NLD d. 20 Sep 1873, Utingeradeel, FR, NLD (Age 0 years) |
| 4. Grietje Sandina Koopmans, b. 11 Sep 1874, Oldeboorn, FR, NLD |
| 5. Jelle Johannes Koopmans, b. 15 Feb 1877, Oldeboorn, FR, NLD d. 23 Apr 1921, Leeuwarden, FR, NLD (Age 44 years) |
| 6. levenloos kind Koopmans, b. 03 Dec 1878, Utingeradeel, FR, NLD d. 03 Dec 1878, Utingeradeel, FR, NLD (Age 0 years) |
|