Sybren Tjeerds de Jong, christened in Garijp on April 29, 1770, son of Tjeerd Sybrens and Sara Romkes.
Sybren was married in Eernewoude on September 13, 1801 in church, at the age of 31 to
Trijntje Syttes Keimpema (aged 22 years), born in Eernewoude on July 5, 1779, christened there on August 22, 1779, daughter of Sytte Keimpes Keimpema (peat cutting supervisor) and Ymkjen Baukes de Jong, died on October 17, 1825, aged 46 years.
From this marriage:
- 1 : Ymkjen Sybrens de Jong, born in Eernewoude on May 22, 1802, christened in Garijp on June 7, 1802, died in Smallingerland on February 23, 1854, aged 51 years.
- 2 : Sara Sybrens de Jong, born in Eernewoude on November 15, 1803, christened in Garijp on February 19, 1804.
- 3 : Akke Sybrens de Jong, born in Eernewoude on September 23, 1805, christened in Garijp on November 26, 1805.
- 5 : Syte Sybrens de Jong, born in Eernewoude on August 24, 1809, christened in Garijp on June 11, 1810, died before July 14, 1811, aged at most 1 year.
- 6 : Syte Sybrens de Jong, born in Eernewoude on June 8, 1811, christened in Garijp on July 14, 1811, died before November 25, 1820, aged at most 9 years.
- 7 : Folkjen Sybrens de Jong, born circa 1817, died in Eernewoude on September 24, 1825, aged approximately 8 years.