this might help
Scremerston in county durham became Scremerston in Northumberland Scremerston is classed as being part of the town of Berwick so instead of saying you were born Scremerston you now say you were born Berwick so part of your census confusion is solved there are wide varieties in Northumberland accents so if you live at Togston and say to the census people (don,t forget the census was sometimes filled in by one person for the whole community as not everyone could read and write) that you came from Berwick this can be picked up as Berwickshire Let me know if you need any information about Isabella Colliery as I knew the area very well There is a henry Watters birth registered 1845 in the Glendale area which is the next area to Norham parish this might be your Henry