There was an ealier enquiry that just mentioned Wigan to Oldham, Bury to Stockport. No mention of mystery voice or the other clues. I suggested W to O was west to east and the other was north to south, and it might relate to where they crossed.
Now I just wonder whether it is W-E N-S. With an O in front for possible hollow sounding would give Owens, if there is such a one, though where the royalty fits in is another question. I'll keep looking.