Trijntje Martens Osinga, born circa 1784 (?).

Trijntje was married in Workum on January 12, 1806 in church, at the age of approximately 22 to
Hendrik Jans de Harder (aged 23 years), born in Workum on November 26, 1782, christened there on December 18, 1782, son of Jan Hendriks de Harder and Janke Nannes Visser, touwpluizer, touwpluizer, touwpluizer, jobless, workman, jobless and workman, died in Workum on December 16, 1847, aged 65 years.
Hendrik was married afterwards in Workum on June 28, 1818, at the age of 35 to Wapke Symons Kalksma (aged 20 years), born in Makkum on May 16, 1798, daughter of Symon Herkes Kalksma and Trijntje Pieters, died in Workum on May 4, 1836, aged 37 years. Hendrik was married afterwards in Workum on July 19, 1837, at the age of 54 to Antje Douwes Kroes (aged 39 years), born in Workum on June 2, 1798, christened there on June 15, 1798, daughter of Douwe Ybeles Kroes and Swaantje Jans, died there on May 20, 1876, aged 77 years.