1855-1860 John Knowles & Co
Publications (3)
- Fanning, G.; NMRS (2001); British Mining 68 - Oldham Coal; ISBN 0901450 54 5; pp.78,79
- Ford, Trevor D. (2010); PDMHS (Peak District Mines Historical Society) 17-5 Sum - Geological Setting of the Lead Mines in the Northern Part of the White Peak, The; 48 pages (1-48)
- NMRS; British Mining 73 - Memoirs 2003; pp.25

