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Daughter of Gerrit Jan Onis and Garritjen Borkink Sister of Bernardus Onis; Aaltjen Onis; Evert Derk Onis; Lammerdina Onis; Gerhard Onis and 1 other; and Willem Onis « less Half sister of Berend Jan Onis; Berendina Gezina / Gesina Onis and Johanna Willemina Onis