Here are some further sources of information and links to other sites and resources
The Border Terrier Club
The Midland Border Terrier Club
The Northern Border Terrier Club
The Southern Border Terrier Club
The Yorks, Lancs & Cheshire Border Terrier Club
The Scottish Border Terrier Club
Border Terrier Organisation
Border Terrier Welfare
Fell and Moorland Working Terrier Club
Buying a Border Terrier Puppy – health issues
https://borderterrierhealth.org.uk/buying-a-border-terrier-puppy.html