You may already be aware of this, but just in case you aren't... C.E. stands for Canada East, otherwise known as Lower Canada and also the Eastern Townships of Quebec.
I do know that there are Sorell's there. Look for anything that remotely sounds close as there are many variations to the spelling. For example, LaRose may be Lareaux.
If you post to one of the Quebec boards, someone may be able to help with the French spellings and pronunciation. Many of our French-Canadian ancestors were enumerated on U.S. census records as illiterate. I suspect there was a language and or pronunciation barrier. U.S. clerks spelt the names as they sounded to them.
This may also account for discrepancies in ages and other data on the records, which was very common in my research.