Hi I am trying to find the baptism and the parents of Jonathan Harrison, born approximately 1800

On all the census returns it shows as just Pembrokeshire, I do not know this area what so ever.

He went on to marry in the Isle of Man lived in Llanidloes where he had his children and then moved on to Snailbeach in Shropshire

He was a lead miner so may be his family where to?

This is the only data I am mising for him and it would also help me move on from him as at present I am stuck on him in the harrison line

Thanks in advance for any help
Fiona