Lease Holders
- 1847 – 1848 : J Burlinson (Maynard Royalty)
- 1848 – 1849 : John Roseby (Maynard Royalty)
- 1849 – 1850 : Bolckow, Vaughan and Company (Maynard Royalty)
- 1850 – 1865 : Losh, Wilson and Bell / Bell Brothers (Maynard Royalty)
- 1853 – 1865 : Derwent Iron Company (Zetland Royalty)
- 1865 – 1947 : Pease and Partners (Zetland and Maynard Royalties)
- 1947 – 1958 : Skinningrove Iron Company (Zetland and Maynard Royalties)
Timeline
- 1830 to 1847 – Ironstone collected on the seashore .
- 1848 – Skinningrove Mine started in the Maynard royalty.
- 1865 – Cleveland Railway connects to Skinningrove via zigzag incline.
- 1865 – Pease and Partners take control of both royalties and move mine site slightly to the South, to align with new railways. Now known as Loftus Mine.
- 1871 – New South Drift started to allow increased output.
- 1872 – Cooke’s ventilator in use.
- 1880 – Skinningrove Iron Company works in Carlin How, begin to use Loftus stone via zigzag.
- 1885 – Waddle fan ventilation introduced.
- 1894 – Loftus mine connected directly to Skinningrove Ironworks via North Loftus shaft opposite mine.
- 1899 – Ironstone from Grinkle transported underground, comes to surface via Loftus until 1914.
- 1907 – Mine electrified.
- 1911 – Electric Sirocco Fan introduced
- 1934 – Mine connected directly to Skinningrove ironworks via aerial ropeway
- 1947 – Skinningrove Iron Company take control when Pease and Partners collieries are nationalized.
- 1958 – Production ends and mine closes.
- 1983 – Tom Leonard Mining Museum opens on site.
The first underground working of ironstone in Cleveland was at Skinningrove in 1848 (years before Vaughans ‘discovery’ of ironstone at Eston)