Croydon, England.

Wayne Alexander
The Mckenzie Brothers
Albert Finch - Inflicted Randy Turpin's first defeat PTS 8
Chas Symonds - Southern area champ at welter
Gary Logan - Southern area champ at welter also

I'm sure there's a few more but it's late and i'm knackered so can't think straight

I'd be very surprised if many (or any non brits had heard of Logan and Symonds)