Research the Shea name by doing a Google search for geneology of David Slaney. That family is tied to the Shea family constantly. My grandmother's name was Laura Ellen Shea b-1906, and settled in St Pierre after marrying Achille Couffon.
She had several sisters & brothers, including Clara, Madeline and Mary. Her Father's name was James Shea.
The page I am talking about gave me alot of Shea information.
We may even be related lol!
If you want to let me know what you find out or have questions, you can email me email@example.com