When I was doing tours of the area on Heritage Weekends, I didn't give a jot of information out that I couldn't say I sourced it from and could rabble on for at least 20 mins on just that section of the tunnels. The extra parts that I am touching on are Williamson's parents, his Godson (buried in a grave in Liverpool) and the connection between Williamson and Rosewen in Cumberland of which was in his will. But if I type it all on here, I wouldn't have a book to print