Jacob Jans de Vries, born circa 1836.

Jacob was married in Tietjerksteradeel on May 15, 1869, at the age of approximately 33 to
Aaltje Lubberts van Wieren (aged 33 years), born in Tietjerksteradeel on June 23, 1835, daughter of Lubbertus Gerbens van Wieren and Lutske Klazes Hoekstra, died there on August 4, 1917, aged 82 years.

• 1 : Lubbert de Vries, born in Suawoude on October 26, 1871.
  Lubbert was married to Geeske Spinder, born in Nijega circa 1873, daughter of Kornelis Jelles Spinder and Aukje van der Hei.