It does not list children. You can go to the opening search website at:http://www.canadiana.org/cgi-bin/ECO/mtq and search for the name Labelle
also if you do not read french, in the document subset to search, click on the down key and choose "English only" documents. He is mentioned in the "The Canadian biographical dictionary and portrait gallery of eminent and self-made men: Quebec and the Maritime provinces volume. " pages 77 and 78. Also in several other locations.
The Labelle family is very large.....do you know what area of Canada your descendant came from?