Jannis (b.1803) son of Isaac and Aaltje de Groote did emigrate in 1846 with his wife and 9 children. Passenger list attached.
A bit more about Aaltje de Groote wife of Isaac Ernisse.
Aaltje de Groote 1st Marriage:
14 Apr 1782 at Groede with Machiel Mazure
Machiel born at Breskens lives at Groede
Aaltje was born and living at Retranchement
After the marriage she will reside at Groede.https://familysearch.org/ark:/61903/3:1:3QS7-99QJ-SDSG?mode=...
The registry for Retranchement (coming and going of people in community) did survive.
It appears to say that Aaltje de Groote left for Groede 12 Apr 1782 with "the knowlege" of the church.https://familysearch.org/ark:/61903/3:1:3QSQ-G9QJ-1QTK?mode=...
Aaltje de Groote dies at Groede on 28 Nov 1843 at age of 78 years.