Hendrik Feenstra, born in Wartena on March 19, 1866, son of Otte Gerrits Feenstra (barge hand and worker) and Hinke Hinnes de Jong, farmer's hand, worker, milkbargeman and worker.

Hendrik was married in Idaarderadeel on May 14, 1898, at the age of 32 to
Aaltje Loonstra (aged 27 years), born in Dragten on December 23, 1870, daughter of Hendrik Jogchums Loonstra (worker) and Jeltje Mients Veenstra, died in Haskerhorne on January 30, 1951, aged 80 years.

• 1 : Hendrik Feenstra, born in Wartena on February 11, 1899, inspector dairy factory, died in Joure on June 7, 1983, buried in Haskerhorne on June 10, 1983, aged 84 years.
  Hendrik was married to Petronella Postma, born in Haskerhorne on January 25, 1901, daughter of Romke Postma (worker) and Matthijsje Hof, died in Heerenveen on May 18, 1980, buried in Haskerhorne on May 21, 1980, aged 79 years.
  

• 2 : Otte Feenstra, born in Wartena on October 17, 1901, died there on February 16, 1905, aged 3 years.