Hi Hugh, John's wifes name on the 1929 marriage cert is given as Christina Shanks McFarlane. I have found and viewed her death cert from 1946 from Kincardine(Perth). I then looked up the death for a John Blair in 1988.The location for the death is coming up for 2 places, Dunblane and Lecropt. Lecropt is the place that John married Christina in 1929. Which makes me think that this is definetly John.The only thing that is bizarre is John's age on his marriage cert of 56 and if he was 18 him marrying a 39 year old woman. Very,Very puzzling. Your thoughts Hugh.