Mark Firth (25 April 1819 - 28 November 1880) was an English industrialist and philanthropist. Born in Sheffield, Mark joined the crucible steel works of Sanderson Brothers where his father worked as head melter, but left in 1842 to set up his own business with his brother, Thomas Jr, in 1842. Their father joined them shortly afterwards, and in 1852 the business had expanded into larger premises at the Norfolk Works in Savile Street, Sheffield, … Wikipedia
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