Sybren Baukes de Vries, born in Grouw circa 1803, son of Bauke Errits de Vries and Grietje Jans Sietzes.

Sybren was married in Idaarderadeel on August 15, 1835, at the age of approximately 32 to
Aefje Sybrens Timmermans (aged approximately 25 years), born in Wartena circa 1810, daughter of Sybren Klazes Timmermans and Jitske Ales.