I agree with Sharyn on this. Forget the possible connection for the present until you have actual proof as stated in a marriage record. You probably want the Gilbert dit Comtois family from the Lanaudiere region of Quebec (there's a specific number of message boards for this region), most of whom went by Comtois in Canada. After coming across the border to the US, they could have taken either surname. In your next post, please give the names of the last couple you have found (husband and wife with maiden name). Probably someone will recognize the couple you're looking for and be able to answer your question. Best of luck in your research, Dennis B.