1884-1901 Henry Shield & James Beadle Shield 1902-1912 James B. Shield 1913 Alfred H. Shield 1914-1922 Randolph Shield 1877-1883 London Lead Co.
Publications (2)
- Fairbairn, Raymond A.; NMRS (2005); British Mining 77 - Mines of Upper Teesdale, The; ISBN 0901450 59 6; pp.43
- Gill, M.C. & Burt, R.; NMRS (2003); British Mining 72 - Mines of Yorkshire, The; ISBN 0901450 56 1; pp.260,325
Merrygill Beck Hushes - 22m- Merrygill Beck Head Hush - 128m
- Merrygill Beck Vein - 384m
- Silverband Hush - 806m
- Silver Band Level - 807m
- Birkdale Hush High Level - 953m
- Birkdale Hush Level - 1,006m
Silverband Mine - 1,032m- Cronkley Mine - 1,043m
- Birkdale Hush - 1,098m
- Birkdale Mine - 1,164m
- Birkdale Hush Low Level - 1,183m
- Milling's Shop - 1,218m
- Merrygill Head Mine - Shaft - 1,220m
- Birtley Mine - 1,625m
- Green Mines - 1,640m
- Green Mines Shaft - 1,754m
- Black Ark Mine - 1,893m
