Pietje Hamersma, born in Sexbierum on March 2, 1882, daughter of Jan Hamersma (worker) and Grietje Barends.

Pietje was married in Barradeel on June 20, 1908, at the age of 26 to
Feike de Jong (aged 29 years), born in Arum on June 3, 1879, son of Jelle Robijns de Jong and Tjitske Feikes Bergsma (maid servant).