Tjietske Jans de Bruin, born circa 1781 (?).

Tjietske was married to
Tjerk Pieters, born in Harlingen on March 6, 1782, christened there on April 9, 1782, son of Pieter Baukes and Grietje Tjerks.

• 1 : Pieter Tjerks, born in Harlingen on August 18, 1804, christened there on September 4, 1804, died before January 10, 1808, aged at most 3 years.
  

• 2 : Grietje Tjerks, born in Harlingen on September 27, 1805, christened there on October 20, 1805.
  

• 3 : Teuntje Tjerks, born in Harlingen on December 21, 1807, christened there on January 10, 1808.
  

• 4 : Pieter Tjerks, born in Harlingen on December 21, 1807, christened there on January 10, 1808, died before July 21, 1811, aged at most 3 years.
  

• 5 : Pieter Tjerks Feenstra, born in Harlingen on June 9, 1811, christened there on July 21, 1811, died on November 6, 1818, aged 7 years.
  

• 6 : Bauke Tjerks Feenstra, born in Harlingen on May 3, 1819.