Shum’s family was probably of German origin. By 1774 the firm of Shum and Son were in business as sugar refiners at 42 Lime Street, London. By 1791 it was known as Shum and Glover and three years later it had become Shum and Gibson. Shum’s son George, who made a runaway marriage with a neighbour’s daughter in 1795,
By 1791 Shum was also a partner in Gyfford’s brewery at Castle Street, Longacre. One of the other partners was Alderman Harvey Christian Combe, whose opposition politics he shared. He joined the Whig Club in 1786 and, unlike his partner Thomas Gibson, did not sign the London merchants’ declaration of loyalty in 1795. He contested Wootton Bassett, unsuccessfully, with George Tierney in 1790. In 1796, when he assisted at Combe’s election for London,
the dissenters who form the third party in the town ... [have] produced a Mr Shum, said to have been sent them by one of the Jacobin clubs, and furnished with more money than either of his competitors.
On 31 May James Bland Burges replied:
Citizen Shum is a brewer and member of the Whig Club. By what I have heard of him his style of expense is such that he stands a good chance of soon trying how long a brewer may subsist upon Jacobin politics after his brew-house is run away.
Bland Burges mss.
One of his ministerialist opponents took fright at the last minute and he was returned unopposed.
Shum, who was elected to Brooks’s on 19 Oct. 1796, voted with the Foxite opposition in the first session of the new Parliament and was in the minority in favour of Grey’s parliamentary reform motion, 26 May 1797. He participated in the Whig secession, his only recorded votes during the next three years being against the triple assessment, 4 Jan.; for inquiry into Ireland, 14 June 1798; in condemnation of the refusal to negotiate peace, 3 Feb., and against the Union, 21 Apr. 1800. He voted with opposition for a call of the House, 12 Nov.; for inquiry into the state of the nation, 27 Nov. 1800, and on the address, 2 Feb., the Ferrol expedition, 19 Feb., and the state of the nation, 25 Mar. 1801; but he did not oppose Addington’s repressive legislation, and his next recorded votes were in support of the Prince of Wales’s claims to duchy of Cornwall revenues, 31 Mar., and an address of thanks for Pitt’s removal from office, 7 May 1802.
He was mentioned as a possible opposition candidate for London at the subsequent general election,
