Parenteel: Gijsberta Gezine Isken
Generatie 1
1 Gijsberta Gezine Isken, * 28 april 1844 Amsterdam, Noord Holland, Nederland, † 6 april 1907 Amsterdam, Government of Amsterdam, North Holland, Netherlands, ∞ Anthonie Janus, * 12 maart 1837 Amsterdam, Government of Amsterdam, North Holland, Netherlands.
Kinderen van Gijsberta Gezine Isken & Anthonie Janus:- Cornelia Louise Janus, * 1880 Amsterdam, Government of Amsterdam, North Holland, Netherlands.