John Marley was an English mining engineer from Darlington who together with ironmaster John Vaughan made the "commercial discovery" of the Cleveland Ironstone Formation, the basis of the wealth of their company Bolckow Vaughan and the industrial growth of Middlesbrough. He was an effective leader of engineering operations at Bolckow Vaughan's mines and collieries. He ended his career as a wealthy independent mine-owner and president of the North of England Institute of Mining and Mechanical Engineers (NEIMME).
- Occupation
- engineer, mining engineer, geologist
- Citizenship
- United Kingdom of Great Britain and Ireland
- Born
- November 11, 1823
- Died
- April 4, 1891
