Having ridden with most of them I can confirm that Robin Archer ( from Newcastle), Chris Pailor (near Hartlepool), Paul Coward (Middlesbrough),John Edwards ( Billingham?) and Kev Keay ( Stockton) can be considered to be ENGLISH.
fairley sure Jay Pleece rode for WIMBLEDON at some point and I think Ian Gibson was English but I thought Andy Nightingale was an Aussie?,they both rode around the old Cleveland Park at some time so I will try and dig out some old programmes and check for you.