Feike de Jong, born in Arum on June 3, 1879, son of Jelle Robijns de Jong and Tjitske Feikes Bergsma (maid servant).

Feike was married in Barradeel on June 20, 1908, at the age of 29 to
Pietje Hamersma (aged 26 years), born in Sexbierum on March 2, 1882, daughter of Jan Hamersma (worker) and Grietje Barends.