I did a blog post about this line a couple of years ago:
http://cruwys.blogspot.co.uk/2008/10/george-cruse-and-mary-a...I haven't heard from the descendants of this line for a while, but I have details of the tree which I can share. When I have more time I will look at the London records on Ancestry and see if the tree can be traced back any further and hopefully linked to one of the other trees.