I don't have the birth date of Catherine. I looked around a little and could not find it either at prdh or on other research sites on internet.
I founded confirmation of her marriage in Sainte-Anne-de-Bellevue (Montreal), on November 3rd, 1761, with Pierre SÉGUIN DIT-LADÉROUTE. I founded out that this was a second marriage for Pierre: he was first married to Marie-Josephte MALLET in 1739.
When I verified all the births with the surname ANDRÉ between the years 1730-1750 (on PRDH), I saw 10 baptisms in Lachine and Montreal, and knowing that Catherine's parents had 10 children, I wondered if one of these 10 baptisms could be Catherine's but with a modification or error in her name?... I saw a Marie-Louise being baptised in 1736 in Lachine that could fit, especially since there was already a Louise in the family that was baptised in 1733 and that was still alive as she got married to Joseph Colin dit Laliberté, on May 31, 1756, in Oka (Deux-Montagnes), Québec, Canada. I think this avenue could be researched more. All the 9 other baptisms on that list fit with the the list that I previously gave.
On the internet, people often give 1739 as the birth date of Catherine but I could not find their sources.
I have downloaded many acts from PRDH for Catherine and her family, I could send them to you if you are interested.