Symon Herkes Kalksma, born circa 1757 (?), died in Workum on January 21, 1814, aged approximately 57 years.
Symon was married to
Trijntje Pieters, born circa 1775 (?).
From this marriage:
- 1 : Wapke Symons Kalksma, born in Makkum on May 16, 1798, died in Workum on May 4, 1836, aged 37 years.
Wapke was married in Workum on June 28, 1818, at the age of 20 to Hendrik Jans de Harder (aged 35 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 before in Workum on January 12, 1806 in church, at the age of 23 to Trijntje Martens Osinga (aged approximately 22 years), born circa 1784 (?). 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.