Malham

  • Bolton MSS (Duchy of Devonshire) extracts from Duty Ledgers 1745-1840.
  • Warren, S. “Pikedaw Calamine Caverns”, 1996.
  • Myers, J.O. “Some questions concerning the history of the Pikedaw Calamine Caverns” British Mining, No.55 (1995), pp.94-111.