Yes, That confused me for a long time! Thank you for looking at this! However, I believe the surviving family gave the name John in error, given the passing of time. He died in the 60s.
Both his marriage record and a newspaper clipping from the time, name Duncan as his father with an address that matches - I used to visit the wider family nearby regularly as a child! Why didn't I ask them all then!!?? I've recently connected with a DNA match who has been able to tell me more about the family - Its amazing!
It's my GGrandmother who is now the mystery! I'm looking at cemeteries, hospital and asylum records now. I'd love to find out more about her and am determined!!
Thank you so much for looking at this, I really appreciate other people's perspectives!
Janet