Around 1797 he moved to Edinburgh, where he served as clerk and book-keeper to several firms, he joined the Philomathic Debating Society, where he made the acquaintance of brothers John and William Ritchie.
When he obtained a position as a clerk in the custom house, he yielded the editorial chair to John Ramsay M'Culloch.
The paper rapidly became the leading political journal of Scotland; its tone was throughout decidedly Whiggish, and in church matters it advocated much freedom of opinion.
[6] In the 1830s Charles Maclaren of the Scotsman newspaper is listed as living at 58 George Square on the south side of the city.
[11] In 1842, late in life, he married Jane Veitch Somner (d.1871), a farmer's daughter, who was the widow of the jurist David Hume.