I’ve got a digital copy of a 1920 Hexham map. It looks like No 15 was a later addition to the street as it’s not on the map. The building to your NW wasn’t there and there was a large gap between no 14 and the square house two doors down. Prior to that it looks like the land was a garden or orchard with a small house on the NW corner of the land. I have no hosting site so can’t post a URL. I can be contacted maybe through Facebook or I can drop you a copy off as I regularly park outside your house to visit my wife’s mum over the road from you. Gary