Sytske Johannes, born circa 1770 (?), woman worker.

Sytske was married to
Haye Fokkes, born circa 1746 (?), died in Grouw on May 30, 1797, aged approximately 51 years.

• 1 : Johannes Haytes van der Schaaf, born in Grouw circa 1793, shipwright's man and shipwright's man.
  Johannes was married in Grouw on May 30, 1816, at the age of approximately 23 to Wypkjen Uiltjes Veenema (aged 24 years), born in Wartena on September 29, 1791, christened there on February 12, 1792, daughter of Uiltje Hoytes Veenema (peat cutting supervisor) and Feikjen Wybes Feenstra.