When was the  Anglo-Irish physician, naturalist and collector died who's niece recovered from spinal deformity due to Sarah "Crazy Sally" Mapp?
Hans Sloane Sir Hans Sloane, 1st Baronet, PRS (16 April 1660 – 11 January 1753) was an Anglo-Irish physician, naturalist and collector noted for bequeathing his collection to the British nation, thus providing the foundation of the British Museum.
Maria Kinnaird Maria Kinnaird (1810–1891), born on St. Vincent, was orphaned by a volcanic eruption and was later adopted by the politician Richard Sharp, known as "Conversation Sharp". Sharp was once considered possibly to be the most popular man in London of his time. Through her adoptive father, she inherited not only a considerable fortune but a wide network of influential friends and contacts, particularly among Whig circles. She became a prominent socialite and leading hostess in London during the mid-Victorian period and was described as being an "accomplished, attractive, and intelligent woman". In 1835, she married Thomas Drummond, who developed the use of Drummond Light in surveying. She would be her husband's mainstay during his final years as Under-Secretary for Ireland (1835–1840).