Ymkje Wybes de Vries, born in Harlingen on April 10, 1803, christened there on September 25, 1803, daughter of Wybe Pieters de Vries and Ymkjen Wobbes (bargewoman), died in Harlingen on December 8, 1833, aged 30 years.
Ymkje was married in Harlingen on November 26, 1829, at the age of 26 to
Casper Johannes Schokker (aged 21 years), born in Leeuwarden on December 20, 1807, christened there on January 13, 1808, son of Johannes Geerts and Roelofke Caspers, peat barge proprietor and peat barge proprietor, died in Harlingen on December 6, 1859, aged 51 years.
Casper was married afterwards in Harlingen on June 26, 1834, at the age of 26 to his sister in law Fentje Wybes de Vries (aged 33 years), born in Bergum on November 9, 1800, christened in Harlingen on December 16, 1800, daughter of Wybe Pieters de Vries and Ymkjen Wobbes (bargewoman).