Saackjen Gialts Kooistra, born in Wommels in the year 1797, daughter of Gialt Doedes Kooistra (worker) and Maaike Jelles, died in Arum on June 29, 1848, aged 51 years.

Saackjen was married in Franekeradeel on June 4, 1820, at the age of 23 to
Robijn Jans Arbeider (aged 30 years), born in Arum on September 6, 1789, son of Jan Robijns Arbeider (worker) and Jeltje Gerrits de Jong, worker and worker, died in Arum on May 15, 1862, aged 72 years.

• 1 : Mayke Robijns Arbeider, born in Tzum on March 29, 1821, died there on June 15, 1821, aged 78 days.
  

• 2 : Jan Robijns de Jong, born in Tzum on April 27, 1822, farmer's hand and worker, died in Pingjum on December 16, 1904, aged 82 years.
  Jan was married in Wonseradeel on May 12, 1855, at the age of 33 to Freerkjen Douwes Faber (aged 25 years), born in Pingjum on June 30, 1829, daughter of Douwe Jans Faber and Akke Brands Blanksma, maid servant, died in Pingjum on November 15, 1915, aged 86 years.
  

• 3 : Maike Robijns de Jong, born in Lollum on November 30, 1824, maid servant.
  Maike had a relation (1) with N.N., born circa 1828 (?).
  Maike had a relation (2) with N.N., born circa 1830 (?).
  Maike was married in Wonseradeel on April 9, 1857, at the age of 32 (3) to Wybren Ynses Wijnalda (aged 42 years), born in Pingjum on September 21, 1814, son of Ynse Wybrens Wijnalda and Tjitske Alberts Dijkstra, died there on May 2, 1865, aged 50 years.
  Wybren was married before in Wonseradeel on March 14, 1840, at the age of 25 to Grietje Klazes de Jong (aged 24 years), born in Witmarsum on January 11, 1816, daughter of Klaas Ates de Jong (worker) and Pietje Ypes Hoekstra, died in Pingjum on June 11, 1855, aged 39 years.
  

• 4 : Jeltje Robijns de Jong, born in Tzum on August 7, 1826, died there on September 13, 1826, aged 37 days.
  

• 5 : Jelle Robijns de Jong, born in Tzum on February 27, 1828, died there on March 28, 1828, aged 30 days.
  

• 6 : Jelle Robijns de Jong, born in Lollum on December 22, 1829, died there on February 12, 1830, aged 52 days.
  

• 7 : Jeltje Robijns de Jong, born in Lollum on February 8, 1832, died there on June 19, 1832, aged 132 days.
  

• 8 : Jelle Robijns de Jong, born in Lollum on September 30, 1833, died in Dronrijp on November 23, 1925, aged 92 years.
  Jelle was married in Wonseradeel on May 9, 1863, at the age of 29 to Tjitske Feikes Bergsma (aged 23 years), born in Lollum on March 28, 1840, daughter of Feike Franses Bergsma (shoemaker, worker and shoemaker's hand) and Riemkje Sjoerds Bijlsma, maid servant, died in Arum on January 19, 1924, aged 83 years.
  

• 9 : Jeltje Robijns de Jong, born in Lollum on June 22, 1836, died after May 28, 1918, aged at least 81 years.
  Jeltje was married in Wonseradeel on May 8, 1869, at the age of 32 to Klaas de Groot (aged 31 years), born in Wier on July 15, 1837, son of Dirk Klazes de Groot (worker) and Pietje Leenderts van de Akker, worker, died in Arum on May 28, 1918, aged 80 years.