My great great grandfather was Isadore Lacaille. He died in Sault Ste. Marie Chippewa Co. Michigan in 1879 at the age of 80. His death record has no parents listed or birthplace. All the information I have is that he was born in Lower Canada. Isadore is an unusual name. Would anyone researching Lacaille let me know if they come across the name Isadore in their research? He had a sons named Isadore, Joseph, Jean Bte. So anyone of them could have been his father's name. Any help appreciated.