Hi. I found record of Francois Goguet m Marie-Madeleine Damour Declignancourt in PRDH. The union was in 1720 at Ste-Anne-de-Détroit. I haven't accessed the details yet - have to find my password.

I found some interesting information about the settlement of Detroit at
http://my.tbaytel.net/bmartin/cadillac.htm
Under the section DETROIT'S FIRST DIRECTORY.
Gognet, Francois, called Sansoucy, a soldier.