Hi Piffy
The confusion over Llangollen or Selattyn as a birth place for Job is not new! Lots of us have experienced it

It is worth looking at a map, to understand:
The parish of Llangollen was very large and stretched from the River Dee over the hills to the Ceiriog valley and then down to just north of Llansilin. Those people living in the south eastern part of the parish often used Selattyn as their favoured Church.
Unfortuniately, I have not been able to find a JobEdwards baptised in either place around the time you state. There is a Job Edwards and wife Mary having children baptised around that time in Selattyn. I think they married in 1810: Job was a labourer, from Whittington.
There was a family of Edwards in Chirk who owned Black Park/Halton colliery. This might be worth investigating

I'll have a think about it. I'm a bit zonked out after my trip back from London thru the snow.
RE your PM - If you have a look on the
'how to use Rootschat' board, you will find quite a bit of info put there by 'Berlin Bob' on uploading photos - for enclosure with messages and as a picture to go with your name (avatar).
Gadget