Teesdale Iron Works
at Stockton-on-Tees
1851: Teesside's first blast furnace was built, after iron ore was discovered in the Cleveland Hills.
Joseph Wright supervised the erection of the Ormesby Iron Works, Middlesbrough
1856 Thomas Howard Head started the Teesdale Iron Works at Stockton-On-Tees, taking Mr Wright into partnership on completion of the works.
1859: Mr. Skinner bought the Teesdale Iron Works.
1860: Mr. Skinner bought the Cotton Mill.
1860 Mr. Wright retired from the partnerships at Teesdale Iron Works.
1862 Joseph Wright retired from the partnership with Thomas Howard Head as Head and Wright at the Teesdale Iron Works, Stockton-On-Tees, in favour of Mr. Joseph Ashby. The firm became Head, Ashby and Co.
1866 Thomas Wrightson, having trained at William Armstrong's works, joined the firm Head, Ashby and Co[1].
1867 After 12 years with the business, Thomas Howard Head sold his interest to Messrs. C. A. Head and T. Wrightson - Head, Wrightson and Co.