[stuck_in_WA]

the staffordshire bull terrier is an English dog, but there were (are) bull n terriers from all over Britain. i assume you are talking about modern history, ie up to 50 odd years ago to the present day.
psycho and stormer 2 "irish" staffords of note were aactually stafford x ebt to varying degrees
the Dublin red strain comes from kc English stock.
gr ch duke was a came from kc regd staffords
many of the uber leggy "irish " staffords you see on the streets of England today are imo stafford x apbt to get around bsl
just a thought , if somone has been breeding staffords in Scottland for many years, when when do they become Scottish....they don"t they are still staffords.