I’m assuming that your query is about the John Burdon at the top of your document.
There is a burial record:
Bishopwearmouth, County Durham , St. Michael & All Angels
9 Jan 1804 John Burdon, of Sunniside, Whitburn, age: 86, died 6 Jan 1804, yeoman
That would point to a birth ~1718
There is a baptism record that fits:
Bishopwearmouth, County Durham, St. Michael & All Angels
14 Oct 1718 John Burdon, of Burdon, son of John Burdon
The marriage that is recorded in your document is:
Bishopwearmouth, County Durham, St. Michael & All Angels
11 May 1758 John Burdon (of this parish) married Hannah Bainbridge (of this parish), by Banns
For this to be the John Burdon of the baptism and burial records he would be marrying at the age of 40. I don't see any candidate for an earlier marriage for him at Bishopwearmouth. But there again Hannah Bainbridge was baptised in 1725 so their ages match quite nicely.