Ynske Keizer, born in Sint Jacobiparochie on November 25, 1892, daughter of Klaas Keizer (worker and workman) and Aafje de Jong.

Ynske was married in Barradeel on June 22, 1918, at the age of 25 to
Willem Hiemstra (aged 26 years), born in Wijnaldum on April 26, 1892, son of Herre Willems Hiemstra (worker and merchant) and Trijntje Robijns Tigchelaar (woman worker).