Leith, Theodore Forbes (DNB00)
LEITH, THEODORE FORBES, M.D. (1746–1819), physician, second son of John Forbes Leith and Jean Morrison, was born in 1746 in Aberdeenshire. He studied medicine in the university of Edinburgh, where he graduated M.D. 12 Sept. 1768. His thesis was read 31 Aug. 1768, and was published at the University Press. It is on the delirium of fever, is dedicated to William Cullen [q. v.] and John Gregory [q. v.], his instructors, and shows some subtlety of distinction and of argument. He practised at Greenwich, and was elected F.R.S. in 1781, and 26 June 1786 licentiate of the College of Physicians of London. In 1806, on the death of his elder brother, he inherited Whitehaugh, Aberdeenshire, went to reside there, and there he died, after breaking his clavicle, 6 Sept. 1819. He married Marie d'Arboine in 1776, and had six children.
[Munk's Coll. of Phys. ii. 361; Thomson's Hist. of Royal Soc.; Thesis.]