John Marley (mining engineer)

John Marley
John Marley, discoverer of Cleveland Ironstone, c. 1880
Born11 November 1823
Died4 April 1891(1891-04-04) (aged 67)
Darlington
NationalityEnglish
EducationDenton School
OccupationMining engineer
EmployerBolckow Vaughan
SpouseSarah
ChildrenCaroline, Florence, Ethel, Isabel, Hugh, J.W.
ParentThomas Marley

John Marley (11 November 1823 – 4 April 1891) was an English mining engineer from Darlington who together with ironmaster John Vaughan made the "commercial discovery"[1] of the Cleveland Ironstone Formation, the basis of the wealth of their company Bolckow Vaughan and the industrial growth of Middlesbrough.[2][3] 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).