1753-1763 Working 1766 Ralph Summers & Co.
Publications (5)
- Gill, M.C. & Burt, R.; NMRS (2003); British Mining 72 - Mines of Yorkshire, The; ISBN 0901450 56 1; pp.340-341.
- Gill, M.C.; NMRS (1993); British Mining 46 - Grassington Mines, The; ISBN 0901450 39 1; pp.61,65,69.
- Heathcote, Chris (2001); PDMHS (Peak District Mines Historical Society) 14-5 Sum - History and Gazetteer of the Mines in the Liberty of Peak Forest, Derbyshire - 1605 to 1878, A; 28 pages (1-28)
- Heathcote, Chris (2010); PDMHS (Peak District Mines Historical Society) 17-5 Sum - History and Gazetteer of the Lead Mines within Bradwell Liberty, A; 31 pages (55-85)
- NMRS; British Mining 88 - Memoirs 2009; pp.101,102,106.
