Sorry for taking so long to reply. I have also wondered if the other Stevenson's were some relation. Over the years, I have found that folk only seemed to go where there were already relatives. I always thought it was a bit odd that John went to Canada on his own and did think he might have gone because there was somebody already there. Trying to figure it out is a whole different ball game. I have no way of confirming where his father was from. I have a possible place but no way of confirming it. I am actually back working on his nephew, William Stevenson, who ran off from Scotland. He was studying medicine in Edinburgh but never graduated although he had done enough to practise medicine. His marriage in St Sylvester states him as 'M.D.' He moved to outskirts of Montreal and another couple of places then New York City, from where he vanished. There was a legal case in Scotland where depositions from his wife, step mother, daughters and others were given. I just wish it shed some light on further back!