Glassford’s father, a tobacco magnate in Glasgow, was the greatest shipowner in Scotland. Glassford was not only well-to-do, he was ‘moderate in his expenses’. He was bred to the law but did not practise. On 20 Apr. 1787 Sir Gilbert Elliot wrote a letter of introduction for him to Lord Malmesbury, describing him as ‘a young gentleman of considerable fortune in the west of Scotland’:
His father ... was long at the head of the trade of Glasgow, and was not only one of the most opulent but one of the most respectable men in that part of the world. Mr Henry Glassford has been two years on his travels and is now at The Hague.
DNB (Glassford, John, 1715-83); Pol. State of Scotland 1788, p. 338; NLS mss 11111, f. 204.
In 1802 he contested Dunbartonshire on the interest of the Duke of Montrose, but there being three candidates, it was decided that he was to divide the Parliament with James Colquhoun.
In 1807 Glassford stood again with Montrose’s support. The following observation was made to Robert Saunders Dundas:
As to Dunbartonshire, it will go for Mr Glassford provided he is not ruined by Mr Edmonstone holding himself out to be the government candidate. There is certainly no comparison between the two candidates. The one supported the friends of the present administration when out of power and lost his election last time because Edmonstone was supported by the late administration. In the one you have a steady friend, in the other a pretended friend who will leave you when any dubiety occurs. In such situations I have seen government injure themselves by neutrality.
NLS mss 8, f. 172.
The warning was heeded and Glassford was returned with government backing. In the House he supported the Portland and Perceval ministries,
