Klaas Wybes Feenstra, born in Wartena on February 6, 1822, son of Wybe Ottes Feenstra (journeyman baker, merchant, shopkeeper and shopkeeper) and Antje Halbes Feenstra (shopkeeper), bargeman and skipper of a trading barge, died in Beetsterzwaag on June 15, 1864, aged 42 years.


Klaas was married in Opsterland on June 26, 1858, at the age of 36 to
Joukjen Fokkes Annema (aged 26 years), born in Beets on May 11, 1832, daughter of Fokke Sytzes Annema (worker) and Romkjen Hendriks Veenstra, died in Beetsterzwaag on July 22, 1889, aged 57 years.
Joukjen was married afterwards in Opsterland on March 4, 1869, at the age of 36 to Lolke Bijlsma (aged approximately 48 years), born in Beetsterzwaag circa 1821, son of Hedmar Annes Bijlsma and Jeltje Johannes Lolkema. Lolke was widower of Janke Ritskes Visscher, born circa 1821 (?), died before March 4, 1869, aged at most 48 years.

From this marriage: