Have found your John Burbridge in 1861 living in South St, Dorking, Surrey. Retired merchant born c1786 Welford, Northants. He is described as father in law to Henry Pidford (looks more like PULFORD on the Return) c1800 wdr.
1851 There is a John BURRIDGE living St Mary Newington, Surrey. Retired merchant b c1787 but gives his pob as Portsmouth, Hants as does his wife Charlotte b c1796. They have appear to have 3 children with them Charles 1830, Jessie 1838 & Elizabeth 1836 all were said to be born in Jersey.
1841 John Burridge 1786 & Charlotte living St Mary Newington, Surrey but no sign of their children? Living with them is a Charlotte Wren 1821, Edmund Tatum 1821 & Robert Tatum 1826.
The age & occupation is consistant with your John - the Portsmouth bit in 1851 could have been an enumerator error or as nothing was found in Welford perhaps there was an error there?
Familysearch pilot gives a John BURRIDGE bpt 6 Aug 1786 son of William BURRIDGE & Mary. St Thomas, Portsmouth.
Didn't find him in 1871
Keziah
ps. Certainly not John & Charlotte just found them in 1861 BERIDGE changed to retired farmer living with Charles & Jessie who are now using the name Saunders.