Had a look for you, and came up with a possible for George's family.
As emeltom has already mentioned, there is a burial for George which gives an estimated birth year of 1762. There is also perhaps another clue in the name of his first son, Thomas, which - if he followed traditional naming conventions - suggests that his father may also be Thomas.
George married in Earsdon, and is described as 'of this parish', so I had a look for other Tindles in this area around the time of George's estimated birth year. There
is a Thomas Tindle baptising children at exactly the right time in Earsdon. He had lots of children there. I cannot see a George, but I cannot see an image of the parish register; I am having to rely exclusively on transcriptions.
I have searched on all the main genealogy sites - both free and subscription - and cannot find images of the Earsdon parish registers. To confirm my hunch that George is a son of this Thomas, I think you will really need to see the register itself. Firstly, to view the witnesses at George's wedding to Sarah, as that could give you the name of a sibling. Secondly, to see if there is a gap or damage to the register around the year 1762; if there is, this is good evidence that George could be within that illegible/missing portion.
Queenie
