A landed gentleman from Crea, Co. Tipperary. He was George Holmes' travelling companion in 1797 when they visited the south-west of Ireland, each writing an account of the journey, and making sketches. Harden's text did not appear until 1953 and only some antiquarian line drawings survive from this period. His account of Ireland just prior to the Rebellion is lively, and full of social comment. while displaying a 'typically romantic view of nature'. He settled in England, but visited Ireland on other occasions. See Anne Crookshank and the Knight of Glin, The Watercolours of Ireland. Works on paper in pencil, pastel and paint, c. 1600-1914 (London: Barrie & Jenkins, 1994).