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Referenced as 'a great historian of the Navy' when discussing the health of Royal Navy sailors. The hosts quote his assessment that 'sailors in the Royal Navy must have been the healthiest body of British subjects in the world,' likely from one of his naval history works.

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Referred to as 'the great historian of the Royal Navy' - quoted regarding naval establishments representing 'islands of the 19th century in the 18th century countryside.'

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Described as 'the definitive history of the emergence of the Royal Navy' covering the Nelsonian period, discussing how British dockyards entered the industrial age before the rest of the country.