I found a marriage for Judeth Franks and Luke( K)nock 1st March 1711 wombourne Staffordshire..
It's a good thing to verify before adding to your own tree. So your starting point is the marriage for Judeth & Luke.
I guess you've got the names of her parents from there, right?
Does it contain the information that they came from France, or did this only pop up in the trees Ancestry showed?