Hi Mrs Food,
I have tried to trace an inquest held in The George Inn, Brithdir (near New Tredegar) and was told that there were a number of possibilities for where the records (if they existed) could be held. It is fairly common for inquests to be held in loca pubs.
I found the datails of the inquest in the local paper - The Merthyr Express. It is available in local libraries, but be warned there are a number of different editions. I have found the details in Merthyr Tydfil Library and Bargoed Library. If you are not local, post me the details and I will have a look next time I am up the library for you.
Ore Dragon