Winnipeg Free Press Rock historian delivers details, but not dirt This summer will be the 50th anniversary of the release of So Long, Bannatyne, the 1971 Guess Who album. That fact and countless other details of the Winnipeg group’s recording career fill the pages of Wheatfield Empire: The Listener’s Guide to the Guess Who, written by Toronto rock historian and author Robert Lawson. Supplied Toronto author Robert Lawson has also penned books about Nazareth and Cheap Trick. Lawson grew up in Winnipeg — not on Bannatyne Avenue but in East Kildonan, where he delivered the Free Press as a kid — but he moved away when he was 10. His family says the first concert he attended was the Guess Who, but he was only two, tagging along with his father, who was an avid record collector.