If your looking for Millers. Atkinsons, Swinburnes or other names near or around the Hexham area and haven't found them after much searching. I've just came across some catholic registers of Northumberland, mainly the 1700's to 1800's.
They start on page 237.
http://www.us.archive.org/GnuBook/?id=miscellanea14cath#269 Rewcastle.
