Robert Howlett was a British pioneering photographer whose pictures are widely exhibited in major galleries. Howlett produced portraits of Crimean War heroes, genre scenes and landscapes. His photographs include the iconic picture of Isambard Kingdom Brunel which was part of a commission by the London-based weekly newspaper Illustrated Times to document the construction of the world's largest steamship, the SS Great Eastern.

SS Great Eastern was an iron sail-powered, paddle wheel and screw-propelled steamship designed by Isambard Kingdom Brunel, and built by John Scott Russell & Co. at Millwall Iron Works on the River Thames, London, England. She was by far the largest ship ever built at the time of her 1858 launch, and had the capacity to carry 4,000 passengers from England to Australia without refuelling. Her length of 692 feet (211 m) was surpassed only in 1899 by the 705-foot (215 m) 17,274-gross-ton RMS Oceanic, her gross tonnage of 18,915 was only surpassed in 1901 by the 701-foot (214 m) 20,904-gross-ton RMS Celtic and her 4,000-passenger capacity was surpassed in 1913 by the 4,234-passenger SS Imperator. The ship having five funnels was unusual for the time. The vessel also had the largest set of paddle wheels.