Children |
| 1. Albertje Karels Koopmans, b. 22 Feb 1864, Oranjewoud, Schoterland, FR, NLD d. Bef 1865 (Age < 0 years) |
| 2. Albertje Karels Koopmans, b. 22 Aug 1865, Wolvega, Weststellingwerf, FR, NLD |
| 3. Gerben Karels Koopmans, b. 08 Mar 1868, Wolvega, Weststellingwerf, FR, NLD d. Bef 1875 (Age < 6 years) |
| 4. Trijntje Karels Koopmans, b. 24 Oct 1869, Spanga, Weststellingwerf, FR, NLD |
| 5. Geert Karels Koopmans, b. 22 Jun 1872, Spanga, Weststellingwerf, FR, NLD |
| 6. levenloos kind Koopmans, b. 15 Jan 1875, Kuinre, OV, NLD d. 15 Jan 1875, Kuinre, OV, NLD (Age 0 years) |
| 7. Gerben Karels Koopmans, b. 31 Dec 1875, Kuinre, OV, NLD |
| 8. IJme Karels Koopmans, b. 09 Jun 1877, Kuinre, OV, NLD d. 11 Feb 1919, Amsterdam, NH, NLD (Age 41 years) |
| 9. Sieger Karels Koopmans, b. 18 Feb 1880, Kuinre, OV, NLD d. 17 Jun 1949, Haarlem, NH, NLD (Age 69 years) |
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