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Gjers, Mill and Co, of Ayresome Ironworks, Middlesbrough.
1870 Company established by John Gjers, Mr. Mills and Mr. Emerson; erected the Ayresome Ironworks.
1870 Had a blowing engine installed by Cochrane, Grove and Co.
1877 The works had 4 blast furnaces
1902 Incorporated as a limited company.
1914 Ironmasters. Specialities: special foundry pig iron, ordinary hematite, low phosphorous hematite, ferro-silicon and silico-spiegel. 
1927 See Aberconway for information on the company and its history
1963 At this time Cranleigh Group owned Millom Hematite Ore and Iron Co which purchased Gjers, Mills and Co from the Holding and Realization Agency. The purchasers undertook to keep Gjers operating for at least 2 years, despite the depressed state of trade.