Northumberland Archives
https://www.northumberlandarchives.com/
Berwick Museum & Art Gallery
https://museumsnorthumberland.org.uk/berwick-museum-art-gallery/
Woodhorn Museum
https://museumsnorthumberland.org.uk/woodhorn-museum/
Northumberland County Council
http://www.northumberland.gov.uk/
Berwick Town Council
Northumberland Archives Trust
https://northumberlandarchivestrust.org
The Heritage Hub at Hawick
http://www.heartofhawick.co.uk/
The National Archives of Scotland
The National Archives
http://www.nationalarchives.gov.uk/
National Library of Scotland
The British Library
Northumberland public libraries
http://www.northumberland.gov.uk/Default.aspx?page=749
Islandshire Archives (Holy Island, Cocklawburn, Belford and Budle)
https://www.islandshirearchives.org.uk/
Belford Museum
http://belfordmuseumuk.btck.co.uk/
Berwick’s Listed Buildings
http://www.britishlistedbuildings.co.uk/
Also The Heritage List: https://www.historicengland.org.uk/listing/the-list
Berwick 900
Guild of Freemen of Berwick-upon-Tweed – Database of Admissions
http://www.berwickfamilies.org.uk/
Berwick Shipyard
http://www.berwickshipyard.com/
The King’s Own Scottish Borderers Association
Berwick Time Lines (Jim Herbert)
http://berwicktimelines.tumblr.com/
The Wilson’s Tales Project
http://www.wilsonstales.co.uk/
Northumberland Communities (County history)
http://communities.northumberland.gov.uk/
Border Roads: the old tracks through the Cheviots
Northumberland and Durham Family History Society
North Northumberland branch:
http://www.ndfhs.org.uk/branches/north-northumberland/
Borders Family History Society
Includes some searchable indexes.
Graham Maxwell Ancestry
http://www.maxwellancestry.com/ancestry/
Includes some searchable indexes covering Southern Scotland and the Borders
Borders Ancestry
https://www.bordersancestry.com/
Research service specialising in Scottish Borders and North Northumberland
Federation of Family History Societies