Sybout Sjoerds Beistra, born circa 1766 (?), died in Cubaard on October 29, 1825, aged approximately 59 years.

Sybout was married to
Janke Dirks, born circa 1781 (?).

• 1 : Lijsbert Sybouts Beistra, born in Cubaard on December 11, 1804, christened there on January 13, 1805, maid servant, died in Cubaard on January 11, 1845, aged 40 years.
  Lijsbert was married in Baarderadeel on May 20, 1830, at the age of 25 to Pieter Cornelis Veenstra (aged 30 years), born in Langweer on November 6, 1799, christened in Oosterlittens on August 31, 1800, son of Cornelis Pieters (schuitevoerder, schuitevoerder and schuitevoerder) and Baukjen Ruurds (woman worker), died in Franeker on February 26, 1879, aged 79 years.