Montgomery’s father was sheriff-depute of Peebles, legal adviser and, for a time, factor to Lord March;
In Parliament he was naturally a regular Government supporter. His first reported speech was on 23 Feb. 1769, when, apologizing for the ‘confusion’ he always felt in addressing the House, he spoke on the payment of witnesses in Sir William Meredith’s breach of privilege case.
If I had had to frame a bill for that purpose ... I do confess I should have doubted very much the mode of compelling ... but I rest satisfied that it is framed by persons of better understanding than mine ... notwithstanding the apparent severity ... I am not apprehensive of the moderation of the Sovereign, nor that any bad use will be made of it.
One of Montgomery’s last services was to pilot through the House in February-March 1774 the Bank of Ayr bill, asking parliamentary sanction for financial arrangements intended to preserve the credit and estates of the principal partners, his friends Queensberry and Buccleuch, and so avert further bankruptcies in Scotland.
Returned unopposed at the general election of 1774, he succeeded Ord in May 1775 as chief baron of the Scottish Exechequer. He died 2 Apr. 1803.
