Children:
- Jan Koops Knobbe was born about 1758 in Oudehaske, Haskerland, FR, NLD; died on 06 Nov 1842 in Heerenveen, Aengwirden, FR, NLD.
- 1. Roelof Koops Knobbe was born about 1758 in Giethoorn, OV, NLD; died on 16 Aug 1826 in huis 133, Oudehaske, Haskerland, FR, NLD.
- Berend Koops Knobbe was born about 1764 in Oudehaske, Haskerland, FR, NLD; died on 03 Jan 1841 in Aengwirden, FR, NLD.
- Evertje Koops Knobbe was born about 1772 in Oudehaske, Haskerland, FR, NLD; died on 25 Oct 1837 in huis 97, Luinjeberd, Aengwirden, FR, NLD.
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