Possibly a mis-spelling of Honeyburn or Honey Burn. Had a quick look and there's a Honeyburn near Denholm (SE Scotland) but looks hilly.
One near Beauly (Muir of Ord) looks more promising.
EDIT: Why did I see Honeyborne instead of Honeychurch!? Old age
I'm working it and though this might give a clue:
Some of the losses are way south of the border. As you know it was usual to have a dedicated PB range reasonably close to home (Forres). Clunas Range is mentioned as is Tain so it may be that Honeychurch was not in Scotland at all.