Bolckow Vaughan and Company Limited 1862 - 1929

In November 1864, the company registered itself, at that time it owned coal, iron and other mines in Yorkshire and Durham (formerly the property of Messrs. Bolckow and Vaughan), blast furnaces, steel works and rolling mills; it also had shares in various companies. In 1929 the company merged with Dorman, Long & Co. Ltd.