See also

Henry Perigal (1801-1898)

Name: Henry Perigal
Sex: Male
Father: Henry Perigal (1768-1867)
Mother: Louisa Brady (1770-1827)

Individual Events and Attributes

Birth 1 Apr 1801 Newington, Surrey
Baptism 4 May 1801 (age 0) St Mary's, Newington Butts, London
Census 1841 (age 39-40) Independent, Smith Street, Chelsea, London
Census 1851 (age 49-50) Stock broker's clerk, visitor, 5 Smith Sq, Chelsea (unmarried)
Census 1861 (age 59-60) "Experimentalist", visiting Hamilton Fulham, civil engineer, Wimbledon (unmarried)
Occupation 25 Feb 1880 (age 78) Experimentalist, 9 North Crescent, Bedford Sq (L.Gazette 25.2.1880, p.1469)
Death fact 1898 (age 96-97) 1898 Jun Qtr, St Giles, 1b/355 (aged 97)
Death 6 Jun 1898 (age 97) 9 North Crescent, Bedford Square, Middlesex
Burial 22 Sep 1898 St Mary & St Peter, Wennington, Essex (aged 97)

Individual Note 1

Henry Perigal, baptised 4th May, 1801, at St. Mary's, Newington Butts. He is a Fellow of the Royal Astronomical and Royal Microscopical Societies; Treasurer of the Royal Meteorological Society; and a Member of several other Scientific Associations. Is the author of various works on Astronomy; Bicycloidal and other Curves; Kinematics, and the Laws of Motion; Probable Mode of Constructing the Pyramids, &c.

Source: Some Account of the Perigal Family (1887)

Individual Note 2

Henry Perigal was a stockbroker and amateur mathematician and astronomer, whose life spanned almost the entire nineteenth century and who is now known principally for an elegant cut-and-shift proof - what is now called a dissection proof - of Pythagoras' Theorem. He himself perhaps felt that this was his most important accomplishment - his diagram was carved, presumably at his own request, on his gravestone in Wennington Churchyard, Essex.

He discovered a number of other interesting geometrical dissections, however, and both his life and his role in nineteenth century British scientific society are curious.


Individual Note 3

PERIGAL Henry of 9 North Crescent Bedford Square Middlesex died 6 June 1898. Probate London 18 June to Frederick Perigal retired civil servant and Caroline Wharton widow. Effects £4180 8s. 10d.