Jouke Sipkes Oudendag, born circa 1836 (?).

Jouke was married to
Marijke de Boer, born circa 1840 (?).

• 1 : Hylkje Oudendag, born circa 1863 (?).
  Hylkje was married (1) to Klaas Visser, died before May 23, 1885.
  Hylkje was married in Barradeel on May 23, 1885, at the age of approximately 22 (2) to Jan Reins Tigchelaar (aged 49 years), born in Sexbierum on December 10, 1835, son of Rein Floris Tigchelaar (worker) and Baukje Jans Visser (woman worker), worker and farmer's hand, died in Sexbierum on November 1, 1901, aged 65 years.
  Jan was married before in Barradeel on November 30, 1861, at the age of 25 to Janke Jans Zijlstra (aged 32 years), born in Oosterbierum on September 28, 1829, died in Barradeel on March 18, 1869, aged 39 years.