Barnabe and Tharsile had a son named Paschal born and baptised 24 Mar 1842 at St-Lin, QC. He was named after his godfather, Paschal Ethier (his godmother was Celeste Guilbau[lt]).
Another researcher has their marriage at Hull, QC on 1 Oct 1866. Not sure where he got his information, since Notre-Dame-de-Grace, the main church in Hull, was opened in 1886.
I'll do some more poking to see if I can't find that date at another church