Roelf Vos1902–?समयरेखाBirth21 Dec 1902, Ommelanderwijk, Veendam, Groningen, NederlandDeath0रिश्तेभाई-बहनAntonia Gerardina Vos (1904–?)माता-पिताHarm Vos (1875–1955)Grietje Ida Koetse (1877–1947)स्रोतwikitree Vos-399