Which preposition to use with antonin

from Occurrences 1%

And, besides, as the trade of a miller never enriched his father, Lepailleur curses his mill from morning till night, and declares that he won't prevent his boy Antonin from going to eat white bread in Paris, if he can find a good berth there when he grows up.

in Occurrences 1%

It was already rolling on again when they recognized the Lepailleurs and their son Antonin in the very compartment where they were seated.

to Occurrences 1%

The miller's bad temper had for the last two months been increased by the return of his son Antonin to Janville under very deplorable circumstances.

Which preposition to use with  antonin