Barnett, whose father sat for Rochester, 1806-7 and 1816-20, was a member of a cadet branch of the Barnett family of Stratton Park, Bedfordshire. On the recommendation of John Inglis, deputy director of the East India Company and an old friend of his father, he obtained a place at its training college in 1815. He was appointed a writer in Madras in 1817, but never joined the service and resigned in England in 1820.
He voted for the second reading of the Grey ministry’s reintroduced reform bill, 6 July, at least twice against adjourning discussion on it, 12 July 1831, and steadily for its details. In his only known speech in Parliament, he supported uniting the representation of Rochester, Chatham and Strood, 9 Aug. In response to a newspaper report in Rochester, where the suggestion was unpopular, he wrote to the editor, 18 Aug., denying that he had stated that the electors there were ‘perfectly satisfied’ with the bill, but that he had said he firmly believed they were
so satisfied with the bill, that they would not wish to throw any obstacle in its way; and that I could not imagine the interests of Rochester were so at variance with those of Chatham and Strood as to require different Members to advocate their interests and rights.
Rochester Gazette, 23 Aug. 1831.
He voted for the prosecution of those found guilty of corruption at the Dublin election, 23 Aug., and paired that day against censuring the Irish government for its involvement in the contest. He spoke in favour of reform at the Inflexible Society’s annual fête near Maidstone, 5 Sept.
