George Abbott B: 1837 in Manchester, Lancashire, looking for death

[eevee]

Hi I hope someone can help.
I am confident with some of the  information I have on George and his wife Eliza Wallis. george was born either in 1837 or 1838. Most census from 1861-1911 say 1837  and a possible 1841 has it at 1838.

I can traceGeorge and Eliza  together through census from 1861-1911.
I have two possible deaths that could be my George
  George Abbott   abt 1837   Mar 1920   Basford   Nottinghamshire
  George Abbott   abt 1838   Mar 1916   Wellingborough   Northamptonshire

The census from 1911 lists their address as Green Cottages, West End, March, Cambridgeshire so hard to tell which it could be,as they had been in Cambridgeshire many years
I have a possible death for Eliza in July 1915 • North Witchford, Cambridgeshire.
Right county and birth year so he may have moved after her death.
Is there are resource in Cambridgeshire that could help me .
thanks

[rosie99]

Deaths Mar 1912   
George Abbott     age  75   
N Witchford    3b   732

[bedfordshire boy]

North Witchford registration district includes March.