About 1855, my gggrandfather Pierre Cartier emigrated to Centerville, Minnesota from Yamaska, Canada. He had a sister Marguerite born about 1924. Their parents were Louis Cartier and Dorothee Ritchot.
Coincidentally, today, I found a stoneware jug for sale on ebay with the inscription "lafleur hotel yamaska." Hoping to find out about this hotel, I typed those words into the google search engine and was surprised to see that the second hit listed was "the ancestors of Guillaume Forcier." I took a look at the site and found the information you're looking for on Joseph Forcier and Margaret Cartier and their family (see #17). Here's the link: http://www.geocities.com/Heartland/Oaks/1015/forcier2.html
Hope this helps you with your research. Good luck.