George and his mother and siblings are in the 1841 census, but his father was deceased by then.
My own research would suggest that
02 Feb 1817 William Devereaux of St Brides mrd Jane Thomas at Talbenny.
10 Nov 1829 Thomas Devereux of Camrose mrd Jane Wade at Roch
A William Devereaux was buried at Camrose in 1830 and a William Devereux at Roch in 1832. I also note the burial of Elizabeth Deverieux at Roch in 1830.
Speculation would suggest Thomas was quite lightly the son of Richard & Mary Devereaux nee’ Lawrence mrd at Camrose 1808 or William & Margaret Devereux nee’ Reynish mrd at Camrose in 1807.
If my pure speculation proves to be the later I strongly recommend you to read the will of William Deveraux of Camrose 1830/016 available for free on the NLoW website.
Just to speculate even further (very dangerous) I wonder if William husband of Margaret is the son of Gabriel & Diana Deveraux mrd at Camrose 1776, if so then the will of Gabriel is also worth a read on the same website dated 1820.
I shall leave to decide what if any connection there is to your own research.
Oh ~ the only George that comes remotely near to your requirements that I can find is George of 1848 born(H'west Reg District, prob Mathry) and baptised at Mathry in 1848, but he is the son of John & Lettice I believe so that counts him out.
At a real stretch I not the baptism of a George Devereux at Camrose in 1814 the son of a William & Margaret Devereux baptised probably 16 Oct 1814.
Mind not for the 1st time my connections could be wrong on all counts, as they say it's for you to decide.
Rgds
Orielbenfro
ORIEL a welsh window on a surname