He is married to Clara Bastiaansdr Boender.
Permission for the marriage has been obtained in Goudswaard on April 18, 1798.Source 1
They got married on May 16, 1798 at Goudswaard.Source 1Kinderen
1. Maria Pietersdr Fonkert, geb. 17 jan 1799, Rhoon,
2. Maria Pietersdr Fonkert, geb. 23 apr 1800, Rhoon,
3. Maria Pietersdr Fonkert, geb. 19 mei 1801, Rhoon,
4. Bastiaan Peitersz Fonkert, geb. 30 mrt 1803, Rhoon,
> 5. Arij Pietersz Fonkert, geb. 21 dec 1804, Rhoon,
6. Wouter Fonkert, geb. 21 dec 1804, Rhoon,