Sir John Maclean KB, FSA (17 September 1811 – 5 March 1895)[1] was a British civil servant, genealogist and author.
After genealogical research his ancestors were connected to the Scottish Clan Maclean, and in 1845, with his brothers, he added to his surname the prefix "Mac".
In 1837, he entered the Ordnance Department of the War Office, and became deputy auditor in April, 1865.
Sir John Maclean died at his residence, Glasbury House, Richmond Hill, Clifton, Bristol, of influenza.
[3] Sir John's Parochial History of the Deanery of Trigg Minor (1872–1879) in 3 volumes is the most detailed work of parochial history which deals with Cornwall (the deanery of Trigg Minor consisted of 20 parishes at the time he wrote).