Willem de Vrij, born circa 1844 (?), docker.

Willem was married in Harlingen on November 10, 1870, at the age of approximately 26 to
Hiltje Sjoerds Donia (aged 21 years), born in Franekeradeel on June 23, 1849, daughter of Sjoerd Gerlofs Donia and Neeltje Dirks van der Zee.

• 1 : Sjoerd de Vrij, born in Harlingen on July 18, 1872, barge hand, died on February 28, 1948, buried in Harlingen, aged 75 years.
  Sjoerd was married in Harlingen on July 9, 1896, at the age of 23 to Johanna Tigchelaar (aged 22 years), born in Midlum on March 8, 1874, daughter of Douwe Jelles Tigchelaar (worker) and Grietje Pieters Hibma (maid servant), died on December 15, 1925, buried in Harlingen, aged 51 years.