To me,.a 'Grew' has always been a Non-Pedigree,.Hard Blood racing whippet...
A specialist speedster, bred from the 'best to the best' by canny men,..over a 50/60 year period,...and rather more than a mere Greyhound put to a Whippet....
Well you learn something new everyday ,Ive allways assumed it was just a straight first cross that people would steal a bit from each name like they do . Cheers for that .