Sybrigje Pieters Katsma, born in Workum on September 1, 1836, daughter of Pieters Sybes Katsma (shopkeeper) and Dieuwke Tjebbes Bonnema, died in Workum on July 29, 1872, aged 35 years.

Sybrigje was married in Workum on October 16, 1859, at the age of 23 to
Bauke Johannes Feenstra (aged 24 years), born in Eernewoude on February 15, 1835, son of Johannes Baukes Feenstra (peat cutting supervisor, barge hand, bargeman, eel bargeman, barge hand and eel bargeman) and Antje Gjalts Wester, sailor, died in 7 km uit Engelse kust on December 22, 1880, aged 45 years.
Bauke was married afterwards in Workum on February 26, 1873, at the age of 38 to Sijtske Willems Zult (aged 25 years), born in IJlst on September 10, 1847, daughter of Willem Jeltes Zult (castellan) and Trijntje Aukes de Vries. Sijtske was married afterwards to N.N., born circa 1855 (?).

• 1 : Johannes Baukes Feenstra, born in Workum on December 9, 1861, died there on May 2, 1862, aged 144 days.
  

• 2 : Dieuwke Baukes Feenstra, born in Workum on December 9, 1861, died in Ternaard on December 3, 1935, aged 73 years.
  Dieuwke was married in Hemelumer Oldeferd on March 7, 1883, at the age of 21 to Jan Molenaar (aged approximately 21 years), born circa 1862, son of Douwe Jans Molenaar (house painter) and Ietske Durks van Dijk, died before December 5, 1935, aged at most 73 years.
  

• 3 : Johannes Baukes Feenstra, born in Workum on September 19, 1863, shop assistant and officer Salvation Army.
  Johannes was married in Leeuwarden on May 19, 1897, at the age of 33 to Jantje de Bock (aged 22 years), born in Haulerwijk on June 8, 1874, daughter of Egbertus Bernardus Jacobus de Bock and Lucia Theodora Pierik.
  

• 4 : Pieter Baukes Feenstra, born in Workum on August 25, 1865.
  

• 5 : Antje Baukes Feenstra, born in Workum on January 17, 1867, died there on February 18, 1867, aged 32 days.
  

• 6 : Antje Baukes Feenstra, born in Workum on August 6, 1869, died there on September 27, 1869, aged 52 days.
  

• 7 : Stillborn daughter, born in Workum on May 24, 1872.
  

• 8 : Bauke Baukes Feenstra, born in Workum on May 24, 1872, died there on September 1, 1874, aged 2 years.