Milner died in London on 24 November 1721. He was a merchant of London, and was particularly involved in overseas trade with Portugal. He contributed to Charles King's The British Merchant, along with other authorities such as Sir Theodore Janssen, Sir Charles Cooke and Henry martin, and is known to have written the long article on Anglo-Portuguese trade that appeared in this publication in 1723. Here Milner described recent treaties and opportunities for trade between England and Portugal, and strongly promotes Portugal as a trading partner for Britain. defoe in the Mercator had dismissed the Portugal trade as unimportant, but Milner analyses it in More detail and believes it is very important, as a diverse range of British manufactured goods are sent there. More generally, Milner supports increases in trade more generally as it is important to national prosperity.
From The Biographical Dictionary of British Economists in Oxford Reference.