for Gwydyr Mines and Quarries, compiled by John Bennett in 1988.
[From estate ledgers held at Grimsthorpe Castle, Lincolnshire and Caernarfon Record Office]
for Gwydyr Mines and Quarries, compiled by John Bennett in 1988.
[From estate ledgers held at Grimsthorpe Castle, Lincolnshire and Caernarfon Record Office]