Hi,
An old Devon Caver, living in Normandy. Henry de Ferrers was a Norman IronMaster who obtained 216 Baronnies in England. The internet reports he obtained leases for lead mines in Derbyshire. Indeed in Devon, the Birland Silver Mines were renamed Bere Ferrers Mines, and it is possible he managed many others.
I am looking for any information on connections between the de Ferrers, Curzon, Levitt or Baskerville families and english mining. There are many hints in the on-line Domesday Book, but I am looking for other sources of information. Thanks in advance...