John Spencer Cavendish was born 25 March 1875 in Piccadilly, Middlesex, England, United Kingdom to Edward Cavendish (1838-1891) and Emma Elizabeth Lascelles (1838-1920) and died 20 October 1914 First Battle of Ypres of unspecified causes.
Lord John Cavendish has been killed in France.
[Captain Lord John Spencer Cavendish, D.S.O., of the 1st Life Guards, was born on 25th March, 1875, being the son of the late Lord Edward Cavendish, and brother of the 9th Duke of Devonshire. His education was received at Eton and Trinity College, Cambridge. He joined the 1st Life Guards in 1897; at the beginning of the South African war he was appointed divisional signalling officer of the 2nd Infantry Division; he was present at the battles of Colenso, Spion Kop, Vaalkrantz, Pieter's Hill, and the relief of Ladysmith; and he also took part in the march from Bloemfontein to Pretoria. He received a medal with six clasps, was mentioned in dispatches, and decorated with the Distinguished Service Order]
|#g1: Offspring of Edward Cavendish (1838-1891) and Emma Elizabeth Lascelles (1838-1920)|
|Victor Christian William Cavendish, 9th Duke of Devonshire (1868-1938)||31 May 1868, Marylebone, London, England, United Kingdom||6 May 1938, Chatsworth House, Derbyshire, England, United Kingdom||Evelyn Emily Mary FitzMaurice (1870-1960)|
|Richard Frederick Cavendish (1871-1946)||31 January 1871, London, Greater London, England, United Kingdom||7 January 1946, Holker Hall, Cark, Cumbria, England, United Kingdom||Moyra de Vere Beauclerk (1876-1942)|
|John Spencer Cavendish (1875-1914)||25 March 1875, Piccadilly, Middlesex, England, United Kingdom||20 October 1914,|