British amateur botanist, the daughter of General Sir Thomas Simson Pratt (1797-1879) who was Commander of British Forces in Australia (1856-1862) and also for New Zealand during the war over the Waitara Purchase (1860-1861). She married Sir Henry Barkly, Governor of Victoria, Australia, after the death of his first wife. Plant collections were made mainly while her husband was Governor of Mauritius (1863-1870) and Governor of the Cape of Good Hope (1870-1877). She also made illustrations of plants collected by Sir Henry Barkly.