Hendrik Jans de Harder, 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 in Workum on January 12, 1806 in church, at the age of 23 (1) to
Trijntje Martens Osinga (aged approximately 22 years), born circa 1784 (?).

Hendrik was married in Workum on June 28, 1818, at the age of 35 (2) 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.

• 1 : Johan Hendriks de Harder, born in Workum on February 21, 1819.
  

• 2 : Simon Hendriks de Harder, born in Workum on December 2, 1820.
  

• 3 : Marten Hendriks de Harder, born in Workum on October 16, 1823.
  

• 4 : Symon Hendriks de Harder, born in Workum on February 8, 1831.
  

• 5 : Jacob Hendriks de Harder, born in Workum on May 6, 1834.
  

Hendrik was married in Workum on July 19, 1837, at the age of 54 (3) 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.

• 6 : Jacob Hendriks de Harder, born in Workum on February 2, 1840.
  

• 7 : Douwe Hendriks de Harder, born in Workum on December 24, 1841, workman, workman, zoutziedersknecht, zoutziedersknecht, zoutziedersknecht, workman, zoutziedersknecht and workman, died in Workum on February 5, 1918, aged 76 years.
  Douwe was married in Workum on November 8, 1868, at the age of 26 to Geeske Cnossen (aged 21 years), born in Heeg on November 10, 1846, daughter of Tjamke Annes Cnossen (barge hand) and Eike Jelles Bijkerk (seamstress), died in Workum on April 14, 1925, aged 78 years.