Children:
- Hijlke Hendriks Hijlkema was born about 1810 in Knijpe, Schoterland, FR, NLD.
- Johannes Hendriks Hijlkema was born about 1813 in De Knijpe, Schoterland, FR, NLD.
- Grietje Hendriks Hijlkema was born about 1815 in De Knijpe, Schoterland, FR, NLD.
- Abe Hendriks Hijlkema was born about 1817 in De Knijpe, Schoterland, FR, NLD.
- Klaas Hendriks Hijlkema was born about 1818 in De Knijpe, Schoterland, FR, NLD.
- Hans Hendriks Hijlkema was born about 1823 in Bovenknijpe, Schoterland, FR, NLD.
- 1. Jantje Hendriks Hijlkema was born about 1824 in De Knijpe, Schoterland, FR, NLD.
- Doekele Hendriks Hijlkema was born about 1828 in Bovenknijpe, Schoterland, FR, NLD.
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