Children:
- Jan Kornelis Olijnsma was born on 14 Jul 1781 in Leeuwarden, FR, NLD.
- Klaas Kornelis Olijnsma was born on 05 Oct 1782 in Leeuwarden, FR, NLD; died on 02 Dec 1858 in Ferwerderadeel, FR, NLD.
- Dieuwke Kornelis Olijnsma was born on 04 Dec 1784 in Leeuwarden, FR, NLD; died on 25 Feb 1857 in huis 34, Lekkum, Leeuwarderadeel, FR, NLD.
- Willem Kornelis Olijnsma was born on 10 Jan 1787 in Jelsum, Leeuwarderadeel, FR, NLD.
- 1. Gerben Kornelis Olijnsma was born on 18 Jul 1789 in Jelsum, Leeuwarderadeel, FR, NLD; died before 1797.
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