Isambard Kingdom Brunel (1806–1859) was an English civil and mechanical engineer. The son of French engineer Marc Isambard Brunel, he worked under his father as an assistant engineer on the Thames Tunnel project for several years until he was seriously injured in a flooding incident. During his recuperation he began a design for a bridge in Bristol, which would later be completed as the Clifton Suspension Bridge. In 1833, Brunel was appointed chief engineer of the Great Western Railway, overseeing development of the main line from London to Bristol which was completed in 1841. Brunel's other achievements included the design of the first transatlantic steamship and dockyards. This 1857 photograph, titled Isambard Kingdom Brunel Standing Before the Launching Chains of the Great Eastern, was taken by Robert Howlett. It depicts Brunel standing before a drum of chain used during the launching of SS Great Eastern at Millwall in London; he carries a cigar case, and his boots and trousers are muddy.Photograph credit: Robert Howlett; restored by Bammesk