A London tea dealer and merchant, Sidney represented his native town of Stafford on two separate occasions, on both occasions aided by his considerable wealth. He declared that he was ‘no party man – no political partisan’ in 1847.
Sidney was born in Stafford, the son of a woollen draper.
Despite his hustings protestations Sidney generally voted with the Derbyites on the key financial divisions between 1847-52, opposing the repeal of the navigation laws, 23 Apr. 1849, and backing Disraeli’s motions on agricultural distress, 21 Feb. 1850, 13 Feb. 1851. Indeed, Sidney was one of the vice-presidents of the National Association for the Protection of British Industry and Capital, and also sat on its general committee.
Throughout his first parliament, Sidney was active in the largely successful rear-guard defence of the City Corporation from various centralising schemes that threatened its autonomy.
Sidney retired at the 1852 general election, fearing the risk of being unseated for his venal borough.
In 1855 a ‘number of respectable Whig and Conservative electors’ invited Sidney to contest Worcester at the next opportunity.
The poor laws were the paramount issue for Sidney in his second spell in Parliament. He argued that there was ‘great dissatisfaction’ in parts of London due to the ‘unequal pressure of the poor rates’, with much of the burden falling heavily on the poor, 8 Feb. 1861.
Sidney reluctantly accepted the permanence of the income tax, 3 Apr. 1862, while urging the reform of its assessment and collection.
Sidney retired at the 1865 general election. On his death in 1889 he left a personal estate sworn under £129,000 and was succeeded by his eldest son from his second marriage, Thomas Stafford Sidney (1863-1917), a barrister who held legal office in India, Africa and the West Indies.
