Hello Michelle. There is no reason to doubt that your great great grandfather
was not buried at Tow Law.
Lots of gravestones have not survived the ravages of time or the politically correct and over sensitive council, that odered the removal of what they say were potentially unsafe gravestones.
There are 837 at the Dans castle cemetery and 21 at St Philips church yard.
Even the St Philip's churchyard have gravestones that have been pushed over to lay face down. I don't think the in scription will never be seen again.
As for other graveyard and cemeteries in the area. I have done all the inscriptions and Walter Scott is not among them.
Here are the Scott gravestone inscriptions from Tow Law:-
In loving memory of William Scott, of North View, Tow Law, who died March/19/1883 aged 65 years.
Also Hannah Scott, wife of the above who died January/15/1900 aged 76 years.
S J Scott of the Tow law Hotel, born January/23/1869 died May/1/1908.
In loving memory of Eric Scott, who died December/1/1941 aged 82 years.
(that one was difficult to read)
Adam