Casper Johannes Schokker, 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 in Harlingen on November 26, 1829, at the age of 21 (1) to
Ymkje Wybes de Vries (aged 26 years), 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.

• 1 : Ymkje Caspers Schokker, born in Harlingen on December 7, 1833, died there on December 21, 1833, aged 14 days.
  

Casper was married in Harlingen on June 26, 1834, at the age of 26 (2) 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).

• 2 : Roelofke Caspers Schokker, born in Harlingen on March 20, 1835.
  

• 3 : Ymkje Caspers Schokker, born in Harlingen on September 16, 1836.
  

• 4 : Johannes Caspers Schokker, born in Harlingen on August 8, 1838.
  

• 5 : Johanna Caspers Schokker, born in Harlingen on June 18, 1840.
  

• 6 : Wiepkje Caspers Schokker, born in Harlingen on October 30, 1842, died before May 14, 1891, aged at most 48 years.