Jan Bonses Zeilstra, born on July 16, 1800, christened in Leeuwarden on August 20, 1800, son of Bonse Pieters (bargeman) and Saakjen Jans, fisherman, died in Oostermeer on January 25, 1871, aged 70 years.

Jan was married in Tietjerksteradeel on July 14, 1827, at the age of 26 to
Haakje Martens de Vries (aged approximately 22 years), born circa 1805, died in Achtkarspelen on April 2, 1894, aged approximately 89 years.

• 1 : Korneliske Jans Zeilstra, born in Wartena on July 31, 1828, died in Smallingerland on March 31, 1858, aged 29 years.
  Korneliske was married in Smallingerland on May 16, 1857, at the age of 28 to Jelle Alles Reitsma (aged 23 years), born in Opeinde on April 30, 1834, son of Alle Boeles Reitsma and Grietje Geeuwkes van der Wind, died in Smallingerland on December 23, 1863, aged 29 years.
  

• 2 : Bonzen Jans Zeilstra alias Zeelstra, born in Idaarderadeel on September 5, 1831, died in Tietjerksteradeel on July 22, 1913, aged 81 years.
  Bonzen was married in Tietjerksteradeel on May 23, 1868, at the age of 36 to Antje Pieters van der Sluis (aged 30 years), born in Opsterland on February 5, 1838, daughter of Pieter Atzes van der Sluis and Wytske Ludzers Krol, died in Tietjerksteradeel on November 23, 1903, aged 65 years.
  

• 3 : Marten Jans Zeilstra, born in Eernewoude on June 16, 1833, died in Tietjerksteradeel on February 4, 1915, aged 81 years.
  Marten was married in Tietjerksteradeel on March 26, 1860, at the age of 26 to Froukje Pieters van der Sluis (aged 30 years), born in Oostermeer on September 3, 1829, daughter of Pieter Atzes van der Sluis and Wytske Ludzers Krol.
  She had from an unknown man one son.
  

• 4 : Saakje Jans Zeilstra, born in Eernewoude on February 22, 1835, died in Smallingerland on November 20, 1913, aged 78 years.
  Saakje was married in Smallingerland on May 1, 1855, at the age of 20 to Rienk Rienders Zettema (aged 30 years), born in Eernewoude on May 28, 1824, son of Riender Jans Zettema and Atje Johannes de Jong, died in Smallingerland on March 24, 1907, aged 82 years.
  

• 5 : Abraham Jans Zeilstra, born in Tietjerksteradeel on February 3, 1837, died in Smallingerland on April 11, 1883, aged 46 years.
  Abraham was married in Smallingerland on May 20, 1865, at the age of 28 to Lijsbert Ybeles Vaartstra (aged 25 years), born in Rottevalle on May 29, 1839, daughter of Ybele Freerks Vaartstra and Hiltje Johannes van der Woude.
  

• 6 : Roelofje Jans Zeilstra, born in Idaarderadeel on November 23, 1839.
  Roelofje was married in Opsterland on May 28, 1865, at the age of 25 to Hendrik Berends de Haan (aged 28 years), born in Opsterland on August 13, 1836, son of Berend Foppes de Haan and Froukjen Hendriks Bosma, died there on March 16, 1922, aged 85 years.
  

• 7 : Romke Jans Zeilstra, born in Tietjerksteradeel on June 16, 1841.
  Romke was married in Aengwirden on June 27, 1874, at the age of 33 to Betje Hes (aged 32 years), born in Lippenhuizen on March 7, 1842, daughter of Hartog Meyer Hes and Elisabeth Klazes Kuipers.
  

• 8 : Johanna Jans Zeilstra, born in Tietjerksteradeel on March 17, 1844, died in Smallingerland on September 14, 1928, aged 84 years.
  Johanna was married in Tietjerksteradeel on November 24, 1874, at the age of 30 to Wytze Geerts van der Velde (aged 39 years), born in Tietjerksteradeel on November 12, 1835, son of Geert Koops van der Velde and Loltje Teyes Benedictus, died in Achtkarspelen on March 11, 1920, aged 84 years.