After moving to Champlain, Hilaire and Antoinette stayed there the rest of their lives.
What you see in this photograph is the interior of Champlain's current Catholic church, Notre-Dame de la Visitation. To summarize, Champlain's first Catholic church was built between 1671 and 1676, its second church (located on essentially the same place as its first church) was built between 1697 and 1699, its third church (moved further inland due to the river erosion which threatened the second church) was built between 1806 and 1808, and its fourth and current church (located on essentially the same place as its third church) was built between 1878 and 1879.
In other words, Hilaire and Antoinette would have attended mass at that first church after they first arrived in Champlain, and that is where all of their subsequent children would have been baptized. However, in their remaining years they would have attended mass at Champlain's second church, and the graveyard adjoining that second church is where both of them would be buried.
Champlain's current church still contains religious objects (e.g. a painting, a sanctuary lamp, and the head from a statute) which were present even in its first church, and which Hilaire and Antoinette would therefore have seen; please visit the current church's web site if you'd like to see those objects, since light reflected from the protective glass they were behind caused my own photographs of them to turn out poorly.