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I have a death notice from the Western Mail (3 Aug 1892 p4) for my ggfather, Rev Taliesin T Jones "respected pastor of the English Baptist Chapel, Pontlottyn", who died on 31 July . It says that the funeral will take place "at the Rhymney Cemetery, where Mrs Mary Jones [his wife] was buried in January 1891".

I have their death certificates. But thought I would like to try and pinpoint the possible physical locations of their graves - even if they're no longer visible. So I contacted Caerphilly council for a register search. But they explain that this cemetery only opened in 1894.  They tell me that "any burials prior to that would have taken place at Parish Church Cemeteries within the Rhymney area, therefore you would need to contact the parish directly to obtain any information which may help".

Does anyone have any advice about where to start?  Especially since he was self-evidently not CofE, which may have affected which cemetery would accept the burials?  (He died in Rhymney at Cyclops House).

thanks for any tips.

Are there any experts out there on the MDR? 
I've just come back using it at the LMA. The staff are great and helped me in the early stages. But they are also very busy of course so I don't like to KEEP asking them questions if I can help myself.
Although the Research guide indicates that both parties to a transaction are indexed, my (limited) experience seems to indicate that only the 'vendor' actually is.  If that's often the case, then I guess I'm unlikely to find out about my relatives' property 'purchases', only their 'sales',  because I don't know who they acquired them from?