Tjitske Halbes Feenstra, born in Wartena on May 21, 1788, christened there on December 7, 1788, daughter of Halbe Baukes Feenstra (peat barge proprietor and bargeman) and Doetje Jacobs, died after February 8, 1861, aged at least 72 years.

Tjitske was married in Grouw on May 20, 1810 in church, at the age of 21 to
Durk Cornelis de Vries (aged approximately 30 years), born circa 1780, died in Idaarderadeel on February 8, 1861, aged approximately 81 years.

• 1 : Sjoertje Durks de Vries, born on October 24, 1811, christened in Grouw on November 10, 1811, died in Leeuwarden on May 31, 1867, aged 55 years.
  

• 2 : Harmke Durks de Vries, born in Grouw on May 8, 1814, died in Idaarderadeel on November 20, 1848, aged 34 years.
  

• 3 : Corneliske Durks de Vries, born in Grouw on September 29, 1816, died in Utingeradeel on January 1, 1889, aged 72 years.
  

• 4 : Halbertje Durks de Vries, born in Idaarderadeel on September 25, 1819, died in Utingeradeel on August 2, 1883, aged 63 years.
  

• 5 : Ulbe Durks de Vries, born in Grouw on December 20, 1821, died in Idaarderadeel on January 27, 1910, aged 88 years.
  

• 6 : Janke Durks de Vries, born in Idaarderadeel on August 28, 1828, died there on July 8, 1857, aged 28 years.