She was the fourth daughter of Robert Kennedy of Pinmore, county Ayr, and Robina, daughter of John Vans Agnew, of Barnbarrow, county Galloway.
She was born at Pinmore in Ayrshire, but at an early age moved to Edinburgh.
She is best known as the author of Father Clement (1823), an anti-Roman Catholic novel, which ran through some dozen editions and was translated into most of the languages of Europe.
A collection of her works in six volumes appeared at Edinburgh in 1827, and a German translation of them, Sämmtliche Werke, in Bielefeld in 1838 and another one in 1842.
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