DEMAINBRAY, STEPHEN CHARLES TRIBOUDET, son of Stephen Triboudet de Mainbray, St. Martin’s in the Fields, Huguenot refugee, and Marie, dau. of Rev. Alexandre de Schivac, Minister of French Church, Bristol; b. 20 Feb 1710; at school under Freind (Lysons, Environs of London, iii, 317); (Desaguliers'); Leiden Univ.; Edinburgh Univ., LLD; lectured at Edinburgh on experimental philosophy; fought as volunteer in English army at Prestonpans 21 Sep 1745; kept boarding school for young ladies, Edinburgh; afterwards went to Dublin, Bordeaux, Montpelier and Lyon; tutor in mathematics, physics and natural history to the future King George III when Prince of Wales 1754-60; Astronomer, Royal Observatory, Kew, from 1768; held “three remunerative offices in the Custom House”, as Examiner of Out-Port Books (by 1769), Surveyor of the East India Warehouse (appointed Jul 1765), and Inspector of Un-rated East India Goods (by 1760); m. 1st, before leaving school, Mary Warshare, Embden [sic : in Netherlands ?]; m. 2nd, 1 Feb 1755 Sarah, sister of John Horne Tooke (qv); d. 20 Feb 1782. DNB.

SIMSON, WILLIAM; b.; adm. (aged 16) May 1736 (Desaguliers'); left 1738.