Hello David. I am sorry but I don't have further information about Deslauriers dit Lafrance or Lafranchise I only listed the Deslauriers nicknames from a dictionnary to help searchers refine their queries in genealogical databases, dictionnaries and indexes where their ancesters may be listed under one of the nicknames. By the same token I gave a short bacground about why and how nicknames were used. I work the Renaud dit Deslauriers specifically and none of the other names listed in the posting.
Besides, your posting does not specify any dates or places except Detroit, which renders the query quite imprecise for a person that has not worked the case.