Mary
Reference the Burial Records PDF I posted yesterday.
It contains several useful clues:
1. The Ministers are all Roman Catholic – you may find other Vallaley connections in the records of Brooms Catholic Church at Leadgate which is just a couple of miles from Blackhill. Your Charles may have left the area and be recorded elsewhere or he may well put in an appearance here.
2. Several of the records show burials in the same plot – 3 in plot 68, section 19 and 2 in plot 54, section 19; in the case of adults, this is usually strongly indicative of a close family connection.
3. Jane and the first Patrick mentioned are roughly contemporaneous – Jane born about 1835 and Patrick born about 1839 – and they may well have been husband and wife. Assuming Charles, who you say was born about 1858, was their first son, a search for a marriage at either Brooms (probably) or Blackhill about 1856-7 may produce a result. You could ring the Stanley Registrar on (01207) 235849 to enquire about purchasing a copy marriage certificate. Remember, however, that it is not their job to give out information; they can only respond to specific, detailed enquiries.
There is a lot more information that could be sifted from these burial records, but if you can track down that marriage certificate it will be a good start.
Good luck with your researches.