I grew up with these guys in Winnipeg, Randy Bachman lived on the same street. Turner was never a part of the Guess Who, he joined Randy Bachman when he left the Guess Who and became a part of the BTO. Burton Cummings and Randy Bachman were magic together, Bachman lured Cummings from a very successful Winnipeg group called the Devrons, Cummings had the voice and Bachman the brains, unfortunately booze, drugs and broads came between them. Bachman married a Mormon and converted, all the guys in the Guess Who hated him for his o so righteous attitude and that was the end, funny thing his wife didn't like him either and also left him, just after he built a beautiful mansion in Bellingham. Wash. A real good read on the history of the Guess Who is the "Randy Bachman Biography".
I didn't really say everything I said. "Yogi Berra"