Jelle Posthuma, born in Harlingen on October 12, 1864, carpenter.

Jelle was married to
Ymkje Schippers, born in Barradeel on July 9, 1863.

• 1 : Bartele Posthuma, born in Harlingen on March 2, 1892.
  

• 2 : Ate Posthuma, born in Harlingen on May 27, 1895, carpenter and contractor, died in Harlingen on December 19, 1987, buried in Goutum on December 23, 1987, aged 92 years.
  Ate was married in Harlingen on July 7, 1923, at the age of 28 (1) to Trijntje Tigchelaar (aged 26 years), born in Harlingen on March 10, 1897, daughter of Anne Tigchelaar (workman, municipal worker and municipal worker) and Taetske de Vries (maid servant), died in Harlingen on September 24, 1974, buried in Goutum on September 27, 1974, aged 77 years.
  Ate was married in Vlieland on October 16, 1975, at the age of 80 (2) to Christina Willemina Beinema (aged 73 years), born in The Hague on January 16, 1902.