"On 25 September 1636, Dr. J. de la Montagne sailed for America a third time, this time with his wife and three children, Jesse (aged 7), Jean Jr. (aged 4), and Rachel (aged 2), on the ship Rensselaerswyck, owned jointly by the patroon Kiliaen Van Rensselaer and by his wife's uncle, Gerard DeForest. The DeForest group on the ship consisted of the DE LA MONTAGNE family, as well as Rachel's brothers Henry and Isaac DeForest. Another child, Marie, was born to Rachel DeForest at sea, before the ship reached New Amsterdam on 5 March 1637."
So where is Yolanta?
"According to many accounts, Jan Bastiansen Kortrijk was married (circa 1640 - 1645) to Iolanta/Jolant/Jolanta De La Montagne, in Beest, Holland, daughter of Johannes Mousnier De La Montagne"
Except that there is no record of anyone with this name in the colony until 1697 when Jelante Kortright stands as a witness at a baptism for a child of her sister. This cannot be Jan's wife.