John Drummond (1676 – 20 December 1742), of Quarrell, Stirling, was a Scottish banker, merchant and politician who sat in the House of Commons from 1727 to 1742.
After the Peace of Ryswick in 1697, he set up in partnership with a Dutchman, Jan van der Heiden and, for a time, their business in fine goods, coffee, tea, chocolate and wine prospered.
[2] By 1709, Drummond had married Agatha Vanderbent of the Netherlands, sister of the Elector of Brandenburgh's agent at Amsterdam [1] With the outbreak of the War of the Spanish Succession, he extended his business to supplying cash to the British Army in the Low Countries and stock-market intelligence to Brydges.
He withdrew £5,000 from the business with a view to buying a seat in the British Parliament at a time when the partnership was already over-borrowed and in May 1712 van der Heiden and Drummond defaulted on 100,000 guilders in debts.
[2] After the formation of the Tory ministry in London in 1710, Drummond became the principal source of Dutch intelligence for Robert Harley, 1st Earl of Oxford and Henry St. John, Viscount Bolingbroke.