I need to check again, but from the family tree it looks to me like he married his cousin. And his father had married his cousin. Which maybe makes you wonder why he was so in favour of population control.
yep – a little scrabbling around the library and the internet and we find, that Grandfather Sydenham Malthus, was born at Northolt in Middlesex about 1678. He married Anne Dalton and had a son and three daughters:
1. Daniel (see below)
2. Anne, wife of Humphrey Hackshaw. No issue
3. Katherine, married George Eckersall in 1745. They had a son, John Eckersall who married his cousin Katherine Wathen (see below), and their daughter, Harriet Eckersall, born in 1777, was to marry her cousin once removed, the Rev. Thomas Robert Malthus.
4. Elizabeth, who married at St.Mary at Hill, London on 19th March 1750 Samuel Wathen. They had a daughter, Katherine Wathen, baptized at St.Botolphs, Bishopsgate, London on 8th February 1753. She married her cousin John Eckersall as noted, had a daughter, Harriet.
So, the first son, Daniel, married his second cousin Henrietta Catherine in 1753. She was the elder daughter of Daniel Graham
The elder son of Daniel and Henrietta, also called Sydenham Malthus, was born c 1754. He married his cousin Mariana Georgina, widow of William Leigh Symes of Esher in Surrey in 1798, she was the daughter of the THOMAS RYVES, by his 2nd wife Anna Maria, younger daughter of Daniel Graham.
The younger son was Thomas Robert. He marries Harriet.
Roots web sums this up with what I can’t but hear as a certain, erm, tone:
Rev. Thomas Robert Malthus is said to have had a hare-lip and speech impediment. He was a celebrated economist and author of the controversial work ‘Political Economy’ which warns of the dangers of population growth. He married (at Claverton Church in Somerset on 12th April 1804) his cousin once removed Harriet daughter of John Eckersall by Katherine daughter of Samuel Wathen
Just refresh yourself by looking back above for Eckersall and Wathem in the entries for the daughters 3 & 4 of grandfather Sydenham Malthus and Anne Dalton.
Keeping it in the family. How to draw the tree?
And to trace out all Marx’s references to this purveyor of ‘vulgar economy’ Capital Ch.24