|Sir Charles Lemon|
|Born||3 September 1784|
|Died||13 February 1868(aged 83)|
|Spouse(s)||Lady Charlotte Ann Foxstrangways|
(died aged 13 months)
Charles William (died aged 12)
Charlotte Augusta Caroline (died aged 10)
He inherited his baronetcy in 1824 upon the death of his father Sir William Lemon, 1st Baronet and Carclew House. His mother was Lady Lemon, who had been the eldest daughter of James Buller MP for Cornwall and Jane, in turn eldest daughter of Allen Bathurst, 1st Earl Bathurst. He attended Harrow School 
Lemon served as Member of Parliament for Penryn in Cornwall from 1807 to 1812 and again from 1830 to 1831. In 1831, he became a Whig Member for Cornwall serving until the Reform Act 1832, whereafter he was Liberal Member for West Cornwall until 1841. In 1842 he was again returned for West Cornwall, serving until 1857.
In 1837, he was appointed to serve on the Transportation Committee of the House of Commons  In 1852 he became deputy Warden of the Stannaries and funded the establishment of what is now the Camborne School of Mines. The name "Lemon" lives on in Truro as "Lemon Street" and "Lemon Quay", and a rhododendron Sir Charles Lemon was bred by him from seeds collected by Joseph Dalton Hooker.
He was elected as a Fellow of the Royal Society on 23 May 1822. He was the second president (1836-8) of what is now the Royal Statistical Society. He spoke at the Newcastle Meeting of the British Association in 1838, during a meeting of the Statistical Section. From 1840-1856 served as President of the Royal Geological Society of Cornwall. He was President of the Royal Cornwall Polytechnic Society from its foundation until his death. He was President of the Falmouth Board of Guardians from its foundation in 1837 until his death.
He was a notable Freemason in Cornwall, having been initiated into the Lodge of Love and Honour No. 75 in Falmouth in 1840, becoming its Worshipful Master in 1843, he was appointed the fifth Provincial Grand Master of the Province of Cornwall in 1844, after an interregnum of five years, following the death of his predecessor, Sir John St Aubyn, Bt in 1839. He held this position until he resigned in 1863.
He married on 5 December 1810 to Lady Charlotte Ann Foxstrangways, 4th daughter of Henry Thomas Fox-Strangways, 2nd Earl of Ilchester. They had two sons, both of whom died young and were named Charles William. The first son died at the age of 13 months. The second was drowned at the age of twelve, at Harrow School. Their daughter, Charlotte Augusta Caroline died at the age of 10, in Aix-les-Bains in 1825.
The baronetcy became extinct on his death on 13 February 1868, as he had no surviving children. The majority of his estate was inherited by Colonel Arthur Tremayne, Sir Charles Lemon's nephew, the son of his sister, Caroline and her husband John Hearle Tremayne, of Heligan. Tremayne was a hero of the Crimean War and a survivor of the Charge of the Light Brigade.
- Notes on the Parish of Mylor, published by Hugh Pengelly Olivey 1907
- The Times, Saturday, Nov 07, 1835; pg. 3; Issue 15941; col B Precis of the Remarkable Memoir of the Life of the Ref. Joseph Drury, D.D., Formerly Head-Master Of Harrow; With Some Particulars In Addition To Those Given In The "Annual Obituary And Biography" For This Present Year. Ob. An. 1834; Aetat. Suae 84. (FROM A CORRESPONDENT.); YORICK. (Lists alumni of the School who were MPs.)
- "LEMON, Charles (1784-1868), of Carclew, Cornw.". History of Parliament Online. Retrieved 2012-07-20.
- The Times, 16 May 1836; pg. 4; Issue 16104; col F: Packet service petition to the admiralty
- The Times, Monday, Nov 27, 1837; pg. 5; Issue 16584; col D: Transportation Committee named.
- Rhododendron 'Sir Charles Lemon'
- Royal Society List of Fellows (accessed 8 December 2007)
- The Times, Thursday, Aug 23, 1838; pg. 5; Issue 16815; col C: "British Association For The Advancement Of Science."
- K. F. G. Hosking & G. J. Shrimpton, ed. (1964). "Patron and Presidents". Present Views of Some Aspects of the Geology of Cornwall and Devon. Penzance: Royal Geological Society of Cornwall. p. iii.
- The Times 17 February 1868, page 9, Column F "The Late Charles Lemon".
- The Times, Wednesday, 11 May 1836; page 2; Issue 16100; col A, Advertisement for prospectus for the South Western Railway.
- Province of Cornwall (2001) Thread of Gold: Celebrating the Unbroken History of 250 Years of Freemasonry in the Province of Cornwall 1752-2002 ISBN 0954085000
- Debrett's Baronetage 7th edn. 1839, page 201, on Google Books (accessed 6 March 2008).
- The Times, Wednesday, Jun 01, 1825; pg. 4; Issue 12669; col F: Death Notices - Charlotte Lemon.
- St Keverne History - Manors: Tregarne.
- Lemon Papers at Cornwall Record Office - Document Reference X62
- Talbot correspondence: Footnote "Lieutenant Colonel Arthur Tremayne (1827–1905), politician and his brother John Tremayne (1825–1901), politician who sat for Cornwall from 1874 until defeated in 1880".
- Google Books: The New Army List No. 85, 1st January 1860. page 50: The 13th Regiment of Light Dragoons
- Google Books: In search of the Light Brigade: a biographical dictionary p 300.
- Leigh Rayment's list of baronets [self-published source][better source needed]
- Leigh Rayment's Historical List of MPs [self-published source][better source needed]
- Hansard 1803–2005: contributions in Parliament by Charles Lemon