Tietje Boonstra, born in Grouw on September 30, 1846, daughter of Klaas Pieters Boonstra and Jaaike Gerbens Zuiderbaan.

Tietje was married in Utingeradeel on October 16, 1873, at the age of 27 to
Wybe Atzes van der Ploeg (aged 27 years), born in Akkrum on April 11, 1846, son of Atze Aukes van der Ploeg (carpenter's man) and Jitske Wybes Feenstra (maid servant), died in Akkrum on December 24, 1923, aged 77 years.