Calvert was the first son of the brewer Thomas Calvert of St. Giles, Cripplegate, London and of Anne, daughter of William Ambose of Reading. He married Mary, daughter of Sir Francis Winnington, MP for Stanford Court, Worcester and Solicitor-General to Charles II.
Calvert was described as a Tory who might often vote Whig. He voted against the Septennial Act 1716. His election was declared void on 30 May 1716 and he was unsuccessful in the ensuing by-elections on 6 June 1716 and in March 1720.
- Romney Sedgwick (ed.), The History of Parliament: The House of Commons, 1715-1754. I: Introductory Survey, Appendices, Constituencies, Members A-D (London: The Stationery Office, 1970), p. 519.
- Sedgwick, p. 519.
|Parliament of England|
|Member of Parliament for Reading
With: Robert Clarges
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