Robin,
My great grandmother was Mary Jabaay, married to Peter Wiers. Please see my Oppenhuis/Wiers Tree. What confuses me is who is Mary Jabaay married to the Jansen. I remember the Jansen fruit stand on Ridge Road in Highland. Some of the Wicker Park property had belonged to Mary Jabaays father and was then given to Mary and Peter.
If you are interested I have more info. I can check.