Sybren Klazes Timmermans, born circa 1783 (?).

Sybren was married to
Jitske Ales, born circa 1787 (?).

• 1 : Aefje Sybrens Timmermans, born in Wartena circa 1810.
  Aefje was married in Idaarderadeel on August 15, 1835, at the age of approximately 25 to Sybren Baukes de Vries (aged approximately 32 years), born in Grouw circa 1803, son of Bauke Errits de Vries and Grietje Jans Sietzes.