From a wealthy Leeds mercantile background, Brown acquired considerable landed estates in Yorkshire and cemented his new social position by securing election as Liberal MP for Malton in 1857, although his parliamentary contribution was minimal during the dozen years he spent in the Commons. Brown’s grandfather and namesake (1758-1813) had made his fortune as a wool merchant and manufacturer in Leeds in the boom that followed the American war of independence. Brown’s father, also James (1786-1845), continued the family business, which included operations at Bagby Mills, Leeds.
Brown made his first attempt to enter Parliament in 1847, offering as a third Liberal candidate at Kingston-upon-Hull after an approach from a section of the town’s ‘Blues’ (Conservatives) in combination with a section of the ‘Orange’ (Liberal) party.
In 1848 Brown was rumoured as a possible candidate for a vacancy in the West Riding, but in the event he gave his backing to the Hon. Charles William Wentworth Fitzwilliam, introducing him to a meeting of electors at Leeds that November.
An infrequent attender, Brown does not appear to have served on any select committees. His only known contribution to debate came in 1862, when he moved successfully to postpone the second reading of the Great Northern railway bill, a measure which the House had rejected on four previous occasions. He argued that not only did the bill fail to satisfy local requirements, but that the House should not allow ‘a company such as the Great Northern, gigantic in its resources, strong in its Parliamentary influence, and overwhelming in the number of its adherents’ to repeatedly introduce what was substantially the same bill, 18 Feb. 1862. When present, Brown gave ‘uniform support’ to Palmerston’s ministry, although he was absent from the key divisions on the conspiracy to murder bill in February 1858.
Although he had joined the bulk of his party in voting against the Derby ministry’s reform bill, 31 Mar. 1859, Brown expressed his regret following his re-election at Malton in 1865 that this measure had not been proceeded with, arguing that there ‘was much good in it, and all it wanted was a good sifting in committee’. He promised to support any reform bill, whether Liberal or Conservative, which enfranchised ‘the thrift and the intelligence’ of the country’ and believed that a £6 franchise could be obtained. On the same occasion he remarked that the malt tax should be left to the chancellor of the exchequer to deal with, and expressed cautious support for a measure for Sunday closing of public houses if this could be done without ‘interfering too much with the liberty of the subject’. He returned to Westminster ‘again unfettered by pledges, except to support the great Liberal party – that of progress’.
Brown was not active in politics thereafter, but continued his involvement with the Yorkshire Agricultural Society, of which he was a vice-president, and helped to re-establish the Doncaster Agricultural Society in 1872, serving as its president.
Brown, who never married, died ‘somewhat suddenly’ at 43 Upper Grosvenor Street, London, in April 1877, having previously visited Sussex for a change of air after being ‘attacked by disease of the lungs’.
