Thanks for confirming the years of birth of the 2 Georges.
This looks a possible baptism for "your" George who died 1896.
FindMyPast baptisms (image/transcript)
Parish of Blaenavon
18 Mar 1855, George and Mary, children of George and Mary Ann Williams, abode Blaenavon Llan ?, father's occpn. miner.
The George, died 1876, is difficult to track. No real clues in newspaper reports. His occpn is "waggoner" in the report. No widow/children mentioned so looking for a single man? No clues to parentage or where born.
Have you found "your" George in '61.