Old Dinas Mawddy Cemetery

[Johanson]

I am looking for the burial of a Richard Jones who had lived at Braichllwyd in the 1800's. His first wife Ann (Evans) Jones died in Dec. 1850 and his second wife Gwen (Richard/s) died in Nov. 1859. I have recently found her burial at Old Dinas Mawddy Cemetery and would like to find out when Richard died. I have found several possible dates but nothing concrete. Richard & Ann had 3 sons, David, John & Robert.  Would appreciate a look-up in the records of this cemetery if they exist.
I thank you in advance for any help.
Catherine