I was about to post a very similar question, then I saw this 5 year old unanswered one - not a good sign!
Here are a few thoughts:
1. The name Ceirien is underlined in the Drouin marriage index, which usually means that the name is known to be wrong.
2. I looked around for a Clémence Racicot married to an Antoine in the right time frame, and found one, who first married Antoine Renaud (Montréal, 1805), then Augustin Perrin (Boucherville, 02/15/1819)
3. Looking around on the WWW, I found someone who had Julien Benoit married to Dorimène Perrin, daughter of Antoine Perrin and Clémence Racicot.