Katherine Thomson (1797–1862) (née Byerley, also as Mrs. A. T. Thomson, pseudonym Grace Wharton) was an English writer, known as a novelist and historian. She was the seventh daughter of Thomas Byerley of Etruria, Staffordshire, a nephew by marriage and sometime partner and manager of the pottery works of Josiah Wedgwood. She married, in 1820, the physician Anthony Todd Thomson, as his second wife.[1] During their residence in London, for some of the time at Hinde Street, Marylebone, she and her husband assembled an artistic and literary circle, among their earlier friends being Thomas Campbell (poet), David Wilkie (artist), James Mackintosh, Francis Jeffrey, Lord Jeffrey, and Lord Cockburn. Later, in Welbeck Street, they saw much of Thackeray, Robert Browning, and also of Lord Lytton, who became a close friend. After her husband's death in 1849, she lived abroad for some years. In 1860, she suffered the drowning of her son, John Cockburn Thomson.[2] She returned to London and died at Dover on 17 December 1862. Less