Ynze Louwrens de Boer, born circa 1800 (?), coppersmith.

Ynze was married in Schoterland on May 14, 1826, at the age of approximately 26 to
Feikje Everts de Reus (aged approximately 22 years), born circa 1804 (?).

• 1 : Hillegonda Yntzes de Boer, born circa 1827.
  Hillegonda was married in Leeuwarden on June 13, 1872, at the age of approximately 45 (1) to Gerrit Rienstra (aged approximately 31 years), born circa 1841, died in Leeuwarden on September 14, 1878, aged approximately 37 years.
  Hillegonda was married in Assen on October 1, 1884, at the age of approximately 57 (2) to Carel van Maren (aged approximately 26 years), born circa 1858 (?), son of Klaas van Maren and Adriaantje van Beek, Corporal state police.
  Carel was widower of Marijke Postma, born circa 1858 (?), died before October 1, 1884, aged at most 26 years.
  

• 2 : Grietje Ynzes de Boer, born in Heerenveen on September 25, 1828, died on February 4, 1918, aged 89 years.
  Grietje was married in Harlingen on May 21, 1858, at the age of 29 to Age Harings de Bock (aged 23 years), born in Woudsend on October 25, 1834, son of Haring Jacobs de Bock (farmer and village policeman) and Trijntje Ages van der Veer (seamstress), ship's carpenter's hand and shipwright, died in Harlingen on April 11, 1923, aged 88 years.