1724-1727 Lord William Powlett
Publications (2)
- Carruthers R.G. & Strahan A. (1922); BGS - Mineral Resources of GB (c1920s) Vol XXVI - Lead & Zinc Ores or Durham, Yorkshire & Derbyshire; 126 pages
- Dunham K. (1952); BGS - Mineral Resources of GB (c1920s) Vol IV - Fluorspar; 162 pages


