1964/5 was the start of the British Blues Revival , with Acoustic players like Mike Cooper , Dave and Joanne Kelly and such .

I would have put it 3-4 years earlier with Alexis Korner and Cyril Davis. But as I said I have no interest whatsoever in accoustic blues, only electric - ever since standing 10 feet away from Clapton's amp at Klook's Kleek and other dives in 1965-66!!