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Baron
Thomas Dimsdale
Baron Thomas Dimsdale
Born	29 May 1712
Died	30 December 1800 (aged 88)
Nationality	British
Occupation(s)	Doctor, politician, banker
Notable work	The present method of inoculating for the small-pox

Baron Thomas Dimsdale FRS (29 May 1712 – 30 December 1800) was an English medical doctor, banker and politician who sat in the House of Commons from 1780 to 1790. He was created Baron Dimsdale of the Russian Empire by Catherine the Great^[1]^[2] after inoculating her against smallpox. His cousin, housekeeper and third wife Elizabeth Dimsdale was a diarist and recipe collector.

Early life

He was born in Theydon Garnon, Essex, the son of John Dimsdale, a surgeon, and his wife Susan. The family were Quakers. He was trained in medicine by his father before training further at St Thomas’ Hospital, London, after which he began to practise medicine in Hertford in 1734.

Careers

Dimsdale developed a particular interest in the prevention of smallpox by inoculation (variolation), a deliberate infection of the patient via the skin with a mild form of the disease to give protection against more virulent strains. He published The present method of inoculating for the small-pox in 1767^[3] which went into five editions by 1769. That year he was elected a Fellow of the Royal Society.^[4]

In 1762, perhaps due to his reputation within London society, he was invited to Russia to variolate the Empress Catherine the Great of Russia and her son, Grand Duke Paul. In 1768, Dimsdale, accompanied by his second son Nathaniel Dimsdale travelled to St Petersburg and inoculated the Empress, her son, and over 140 members of the Court.^[5] The results were a success and Catherine rewarded Dimsdale with £10,000, a pension of £500 per annum, £2000 expenses and a Barony of the Russian Empire.^[6] Nathaniel was also rewarded and he too received a Barony. In case the results had produced adverse effects, the Empress had arranged for a relay of fast horses to be available to speed the Dimsdales out of the country.^[7] During the long preparatory period before the variolations he wrote Tracts on inoculation written and published at St Petersburg in the year 1768.

On his return from Russia, Dimsdale became a banker, initially in the private banking partnership of Dimsdale, Archer & Byde in Cornhill, London and afterwards as a partner in Staples, Baron Dimsdale, Son & Co.^[8] He was elected as MP for Hertford in two successive parliaments in 1780 and 1784.^[9] In 1781 he and Nathaniel returned to Russia to carry out further royal inoculations.

Family

He had married three times: firstly Mary, the daughter of Nathaniel Brassey of Roxford, Hertfordshire; secondly Anne, the daughter of John Iles, with whom he had seven sons and two daughters; and thirdly Elizabeth Dimsdale, the daughter of his cousin Joseph Dimsdale of Bishop's Stortford. She had lived within the family for most of her life and she a diarist and writer of letters.^[10] He was succeeded in the Russian Barony by his eldest son John, from whom it descended within the family. The Barony of John's son Nathaniel lapsed when he died with no heir.

Death

He lived in Bengeo a part of Hertford, the county town of Hertfordshire, where Dimsdale Street, which partly bounded his land, still bears his name. He died in 1800^[11] and was buried in the Quakers' burial-ground at Bishop's Stortford, Hertfordshire.

References

^ "DIMSDALE, Thomas (1712-1800), of The Priory, Hertford". historyofparliamentonline.org. Archived from the original on 9 February 2015. Retrieved 24 March 2013.
^ "Parishes: Essendon | British History Online". www.british-history.ac.uk.
^ Dimsdale, Thomas (1769). "The present method of inoculating for the small-pox: To which are added, some experiments, instituted with a view to discover the effects of a similar treatment in the natural small-pox". W. Owen. {{cite journal}}: Cite journal requires |journal= (help)^{[full citation needed]}
^ "Fellows details". Royal Society. Archived from the original on 16 February 2022. Retrieved 15 May 2016.
^ Ward, L. 2022. The Empress and The English Doctor: How Catherine the Great defied a deadly virus. London, UK: Oneworld Publications.
^ "What Thomas Dimsdale, arguably the world's first biotech entrepreneur, tells us about drug pricing". drugbaron.com. 15 April 2014. Archived from the original on 15 August 2015. Retrieved 15 August 2015.
^ Hopkins, Donald R. (2002). The Greatest Killer; smallpox in history. Chicago: University of Chicago Press. pp. 66–69.
^ "Thomas Dimsdale". Royal Bank of Scotland. Archived from the original on 4 March 2016. Retrieved 15 May 2016.
^ "DIMSDALE, Thomas (1712-1800), of The Priory, Hertford". History of Parliament Online. Archived from the original on 29 April 2016. Retrieved 15 May 2016.
^ Falvey, Heather (13 June 2024), "Dimsdale, Elizabeth (1732–1812), diarist and collector of recipes", Oxford Dictionary of National Biography, Oxford University Press, doi:10.1093/odnb/9780198614128.013.90000382522, ISBN 978-0-19-861412-8, retrieved 17 June 2024
^ http://heritagearchives.rbs.com/wiki/Thomas_Dimsdale ^{[dead link‍]}

External links

Works by Thomas Dimsdale at Project Gutenberg

Parliament of Great Britain
Preceded by John Calvert Paul Feilde	Member of Parliament for Hertford 1780–1790 With: William Baker John Calvert	Succeeded by Nathaniel, Baron Dimsdale John Calvert