The Hexham Courant is the local paper for a very large area, which is (approximately) along the Tyne valley from the border with Durham to the border with Cumberland in the West. It more or less follows the county border in the south, although it covers Alston (don't know if any other papers cover this area). To the north, it goes right up the North Tyne valley. I remember from my school days in Hexham that some children had to board in Hexham during the week because it was too difficult to get there and back on a daily basis. We are talking of about one third of Northumberland.
In the early days, there may have been other papers that were amalgamated into what became the Courant (or they may have simply folded) but I'm not aware of any specifically for Haydon Bridge,
I found a website dedicated to North Pennine Ancestors (sorry didn't save the URL) where you might like to check for Haydon Bridge references. It's not as well used as RootsChat, but may be used by people who don't use this site.
