Syke de Groot, born in Harlingen circa 1798, died there on November 14, 1857, aged approximately 59 years.

Syke was married in Harlingen on September 28, 1848, at the age of approximately 50 to
Hendrik Johannes Nielsen (aged approximately 50 years), born in Harlingen circa 1798, son of Johannes Hendriks Nielsen (weaver) and Johanna Rintjes Wagenaar (peat tallier), died in Harlingen on June 13, 1858, aged approximately 60 years.
Hendrik was married before in Harlingen on September 29, 1822, at the age of approximately 24 to Sibilla Klein (aged approximately 20 years), born in Harlingen circa 1802, died there on April 18, 1845, aged approximately 43 years.