Hi Dave,
The trouble with this Samuel Gent you show was he was born 1783 whereas
the Samuel Gent in the Wood Ditton/Saxon Street in the 1841-71 censuses say he was born 1793-6 and when he died 20/9/1872 his age is given as 78, so again born 1794.
To get his birthdate a few years out seems possible, but 11 years seems too much of a stretch. Also I seem to remember this 1783 Samuel Gent did turn up locally to Selston in the 1841 census and so I had eliminated him from my possibles.
Best
John