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
https://www.liveborders.org.uk/heart-of-hawick/
The National Records of Scotland
https://www.nrscotland.gov.uk/
The National Archives
https://www.nationalarchives.gov.uk/
National Library of Scotland
The British Library
Northumberland public libraries
https://www.northumberland.gov.uk/Libraries-and-archives.aspx
Islandshire Archives (Holy Island, Cocklawburn, Belford and Budle)
https://www.islandshirearchives.org.uk/
Belford Museum
http://www.belfordmuseum.co.uk/
Berwick’s Listed Buildings
https://britishlistedbuildings.co.uk/england/berwick-upon-tweed-northumberland
Also The Heritage List: https://www.historicengland.org.uk/listing/the-list
Berwick 900
Guild of Freemen of Berwick-upon-Tweed – Record Search
https://freemenofberwick.org.uk/record-search/
The Photo Centre Collection
https://www.photocentreberwick.co.uk/
Berwick Shipyard
https://www.berwickshipyard.com/
The King’s Own Scottish Borderers Association
https://www.kosb.co.uk/museum/
Berwick Time Lines (Jim Herbert)
https://berwicktimelines.tumblr.com/
The Wilson’s Tales Project
https://www.wilsonstales.co.uk/
Northumberland Communities (County history)
https://communities.northumberland.gov.uk/
Northumberland and Durham Family History Society
Borders Family History Society
Includes some searchable indexes.
Scottish Indexes (Graham Maxwell)
https://www.scottishindexes.com/
Borders Ancestry (Susie Douglas)
https://www.bordersancestry.com/
Family History Federation
https://www.familyhistoryfederation.com/