Everybody knows that Sonny Boy "John Lee" Williamson was murdered in 1948 at age thirty-four - he could not to be in Europe in 60s.
Rice Miller first time named himselve Sonny Boy Williamson in 1934, before he made King Biscuit Time in KFFA radio, when he met First Sonny Boy.

Dave Sutherland, do you remember Ready Steady Go with Sonny Boy Williamson?

Maciej