Sjoerdje Pieters Robijn, born circa 1802.

Sjoerdje was married to
Dirk Wisses Feenstra, born circa 1800, bargeman.

• 1 : Joukje Dirks Feenstra, born in Achlum on June 21, 1835, died there on February 19, 1896, aged 60 years.
  Joukje was married in Franekeradeel on May 3, 1856, at the age of 20 to Cornelis Pieters Feenstra (aged 25 years), born in Hennaard on March 30, 1831, son of Pieter Cornelis Veenstra and Lijsbert Sybouts Beistra (maid servant), carpenter's man, died in Bolsward on January 27, 1900, aged 68 years.