Ybeltje Kornelis Ferwerda, born in Drachten on April 30, 1830, died in Janum on May 17, 1899, aged 69 years.

Ybeltje was married on May 12, 1855, at the age of 25 to
Gerben Reinders van Wieren (aged 24 years), born in Oenkerk on September 19, 1830, son of Reinder Gerbens van Wieren and Trijntje Hanses Kroodsma, died in Janum on May 18, 1907, aged 76 years.

• 1 : Reinder Gerbens van Wieren, born on February 16, 1856, died on April 14, 1861, aged 5 years.
  

• 2 : Kornelis Gerbens van Wieren, born on October 3, 1858, died on October 6, 1858, aged 3 days.
  

• 3 : Kornelis Gerbens van Wieren, born on June 5, 1860, died in Bolsward on January 2, 1937, aged 76 years.
  Kornelis was married in Dantumadeel on October 20, 1881, at the age of 21 to Sybrigje Ypes Poortinga (aged approximately 23 years), born circa 1858 (?).
  

• 4 : Trijntje Gerbens van Wieren, born in Janum on March 3, 1863, died in Quatrebras on November 10, 1949, aged 86 years.
  Trijntje was married to Marten Lieuwes Kingma, born in Birdaard on December 3, 1859, died in Leeuwarden on April 10, 1944, aged 84 years.
  

• 5 : Reinder Gerbens van Wieren, born in Janum on August 16, 1865.
  Reinder was married in Dantumadeel on May 23, 1889, at the age of 23 (1) to Gerlofke Klazes Krol (aged approximately 22 years), born circa 1867 (?), died before December 17, 1900, aged at most 33 years.
  Reinder was married in Smallingerland on December 17, 1900, at the age of 35 (2) to Aafke Nicolai (aged approximately 22 years), born in Drachten circa 1878 (?).
  

• 6 : Elisabeth Gerbens van Wieren, born on February 23, 1868.
  Elisabeth was married in Dantumadeel on May 8, 1890, at the age of 22 to Ennius Boersma (aged approximately 26 years), born circa 1864 (?).
  

• 7 : Grietje Gerbens van Wieren, born in Janum on September 7, 1871.
  Grietje was married in Idaarderadeel on July 14, 1904, at the age of 32 to Gjalt Feenstra (aged 43 years), born in Wartena on December 28, 1860, son of Wybe Gerrits Feenstra (baker) and Doetje Roelofs Walda, worker, stock farmer, merchant and cigar and tobacco merchant, died in Wartena on October 21, 1939, aged 78 years.
  Gjalt was married before in Idaarderadeel on November 12, 1891, at the age of 30 to Antje Jans Kooistra (aged 41 years), born in Warga on September 2, 1850, daughter of Jan Johannes Kooistra (farmer) and Tjerkje Tjerks van der Woude, died in Wartena on October 7, 1899, aged 49 years. Antje was married before in Idaarderadeel on May 7, 1870, at the age of 19 to Meine Eizes Weima (aged approximately 25 years), born in Wartena circa 1845, son of Eize Meines Weima and Trijntje Meines Terpstra, stock farmer, died in Wartena on August 10, 1890, aged approximately 45 years.