|Biography*|| ||O.s.p. He was baptised in Bromfield, July 14, 1697, as 'Henry Culpeper Fairfax, son of Thomas Lord Fairfax and the Lady Catherine his wife, born 9 July;' and was there buried also, October 19, 1734, as 'the Hon. Henry Culpeper Fairfax.' George William Fairfax entered in the Leeds Castle Bible, 1761, as to him: 'A gentleman well versed in the mathematicks, and other branches of polite literature, died at Leeds Castle, October 14, 1734.' He matriculated at Oriel College, Oxford, 29 January, 1713/14, aged 16; and graduated B. A., 15 October, 1716 (Registrum Orielense, ed. Shadwell, 1902). He was Captain-Lieutenant in Sybourg's Horse (Seventh Dragoon Guards), 24 February, 1718/19; and in August, 1730, commanded a company in Brigadier Edward Fielding's regiment of Invalids (W. O. 25; 89; Dalton, George I's Army, 1912, ii, 162). On January 11, 1726/7, he was elected a Fellow of the Royal Society on the strength of his specialty in mathematics (Records of the Royal Society, 1901, p. 254). There are obituaries in London Magazine and Gentleman's Magazine, 1734.|
(Source: Fairfax Harrison, "The Proprietors of the Northern Neck").