Klaske Tigchelaar, born in Midlum on December 20, 1889, daughter of Rinze Douwes Tigchelaar (worker, tileworker, casual labourer, fabriekswerkman and worker) and Hendrikje Dijkstra (maid servant and maid servant).

Klaske was married in Franekeradeel on July 24, 1915, at the age of 25 to
Johannes Metselaar (aged approximately 25 years), born in Midlum circa 1890, son of Johannes Metselaar (worker) and Minke Hilverda, worker.