Hendrik Jans de Boer, born in Idaarderadeel on February 25, 1861, worker.

Hendrik was married to
Anke Sipkes de Boer, born in Leeuwarderadeel on September 27, 1863.

• 1 : Wytske de Boer, born in Warga on January 12, 1901, maid servant, died in Grouw on October 4, 1957, aged 56 years.
  Wytske was married in Idaarderadeel on May 27, 1922, at the age of 21 to Abe Feenstra (aged 26 years), born in Grouw on February 20, 1896, son of Wybe Feenstra (worker) and Sytske de Heer, worker, worker, melkvervoerder and woodworker, died in Littenseradiel on February 22, 1988, aged 92 years.