According to the info. I have, my great-grandfather was François Uldéric Lavallée (m. Marie-Zélie Côté in 1887). His father was François-Xavier Lavallée (m. Olive
Olivier in 1855).
Now, François-Xavier Lavallée's father was Joseph Paquet-Lavallée (m. Geneviève Thomas in 1821).
I also am trying to find a connection to Calixa Lavallée...