Your request is old but Hilarion is my great great grand uncle. He was the brother of my great great grandfather Fabien Thibault. I was just detailing his relationship to our family today at http://descendantsoflouisthibault1615.blogspot.com/2010/12/e....

You can find more details (and perhaps you or your family already know about this and contributed to it) at http://nantibo.philgay.qc.ca/fel/pafg81.htm#14851