Thanks to all those answers above, this has been an interesting search and have only recently got back on to it. A bit of a red herring for me in a way as he is quite far of the tree from the line I am following he is the son of Harriet Britton who in turn is the daughter of my GG Grandfather And the boy was 'born out of wedlock'. we found him in the 1881 in Hoo with his grandfather and shown as "Grandson" and again in the 1891 census were he is listed as Ag Lab.
A revisit out of curiosity turned ap the incorrect marriage to AM Whitecross in 1905 and his presence on Mauritius in the 1911 census. Not sure how he got there as the Royal Fusilier's website states that the 3rd Brigade was stationed in India prior to WW1 and went from there to France when war broke out. the battalion was subsequently disbanded in 1945 at the end of the war.
Another and hopefully final revisit a couple of weeks ago as a result of a passing comment to my boss at our local museum has resulted in revealing some of the above but added more, it creates more questions than answers.
I did find an entry in the 1939 register of a Robert Britton and Agnes M Britton in East Kirby Notts, but recent finds has eliminated him.
Thanks for your help, but still interested in finding a date of death if possible
Alan