OOo I would also love to find mine...I think she's in Devon so I was planning on posting in the south west forum?
Do you know where he was bred? - I know mine as the vet that originally filled out all the horse markings bit on his passport was in devon. Maybe that could help you?!
I know that he is a racehorse breeder who uses the word Blakeshall when naming a lot of his horses. Blakeshall is a small hamlet in Worcestershire near Kidderminster. He used to be assistant trainer to Chamberlain and ran his Kidderminster yard as a satellite yard for Chamberlain's operations. Not much help but may give you something to go on.