The term 'Big Name in Steel' refers to the inventor of the Bessemer process, Henry Bessemer. Henry Bessemer was an English engineer and inventor who developed a process for mass-producing steel in the mid-19th century. This process revolutionized the steel industry and allowed for the production of large quantities of steel at a much lower cost. The Bessemer process is still used today and is considered one of the most important inventions in the history of steel production.