Children:
- Johannes Piers died before 1763.
- Johannes Piers died before 1769.
- Jitske Piers Sjollema
- Klaas Piers Sjollema
- Johannes Piers died before 1776.
- Jetske Piers was born on 06 Dec 1772 in Grouw, Idaarderadeel, FR, NLD; died before 1775.
- Jetske Piers Sjollema was born on 08 Feb 1775 in Grouw, Idaarderadeel, FR, NLD.
- 1. Johannes Piers was born on 11 Feb 1776 in Grouw, Idaarderadeel, FR, NLD; died before 1778.
- Johannes Piers Sjollema was born on 05 Aug 1778 in Grouw, Idaarderadeel, FR, NLD.
- Neelke Piers Sjollema was born on 02 Mar 1780 in Grouw, Idaarderadeel, FR, NLD.
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