Hi,
Jo - thanks for taking an interest in this thread.
The Salusbury/Salesbury/Salisbury family of Denbighshire is a very interesting family. Many books contain information about the better known and illustrious branches.
There are also many branches which are not so well documented and the aim is to try and find out where (if at all) they fit into the better known branches.
Certainly this is the case for my branch.

The Salusburys of Cotton Hall, who you mention, are also very closely associated with both Offley and Graveley in Hertfordshire, two places that are just a few miles away from where I now live.
Rol/Heather - It's a shame there is not more information on the burial record. If a child died before their father it would hopefully say who the father was.
In Llanfwrog there is baptism record for an Edward Salesbury s/o Hugh and Elizabeth born Sep 16 1666 (I think it should be 1666 as the CFHS transcript seems to have have a very long 1665 and then skips to 1667, probably a missing title). So there is at least one other Hugh it could be.
Mind you, there is also a burial record in Llanfwrog, with no other information, for a Hugh Salesbury who died in 1670 - so who knows!
Paul