The disappearance of Cornelia Stolk

The Cornelia Stolk in this story was born in Rotterdam on February 23, 1800. She was the second child of Abraham Stolk (1779-1833) and his first wife Cornelia Koppen. She had 6 further siblings, but some of them died young.
At the age of 19, Cornelia Stok was married on May 19, 1819, in Rotterdam to Hendrik Zwartbol. He was the only surviving son of Cornelis Zwartbol and Anna van den Hoek. Hendrik born in Charlois (now part of Rotterdam) on February 8, 1798. His eyes were blue and his hair and eyebrows were brown.
The couple had two daughters, both born in Rotterdam: Johanna Cornelia on October 30, 1819, and Cornelia Hendrika on July 30, 1821. They grew up without a mother.
Relatives and acquaintances mentioned in a statement, drawn up in 1840, that Hendrik Swartbol and Cornelia Stolk had been living together for approximately five years, when Cornelia quietly left their marital home, and has not been seen since.

The eldest daughter, Johanna Cornelia, was heavily pregnant when she married Samuel Stead on September 9, 1840, in Rotterdam. Samuel Stead was a 40-year-old widower, born in Farnley in Great-Britain. Samuel had several children with his first wife Jannetje Verstraten (1804-38).
Just a month after their marriage, Johanna Cornelia gave birth to a daughter Cornelia Antonia Stead on October 12, 1840, in Rotterdam. Samuel Stead died in Rotterdam on December 1, 1841. They had been married for approximately 15 months. On April 14, 1843, in Rotterdam, while still unmarried, Johanna Cornelia Swartbol gave birth to a son named Johannes.

Hendrik Swartbol was working as a third class sailor in the navy, stationed on a ship named "Euridice", located in the port of Flushing, when he died on August 29, 1843. To be able to settle the inheritance of their parents, an ad was placed in 1851 on behalf of the daughters, trying to locate their mother.

Nieuwe Rotterdamsche Courant (newspaper), 20-12-1851

Meanwhile, Cornelia Hendrika was still unmarried and earned a living as a maid. Johanna Cornelia had married her second husband, Jan Pieter Hamwijk (1821-1900), on May 14, 1845, in Rotterdam. With him Johanna Cornelia had additional children, born in Rotterdam, The Hague and Groningen.

The Court in Rotterdam ruled on June 16, 1853, that Cornelia Stolk, wife of Hendrik Zwartbol, was presumably death since December 1, 1825.

Nieuwe Rotterdamsche Courant (newspaper), 17-6-1853

Cornelia Hendrika Zwarbol died, still single, in Rotterdam on June 15, 1864, aged 42. Johanna Cornelia returned to Rotterdam were she died on February 9, 1893, aged 73.

Sources: Delpher.nl, WieWasWie.nl, StadsArchief.Rotterdam.nl.