John Oswald Cox was born 27 May 1888 in Grafton, New South Wales, Australia to Edwin James Cox (1857-1907) and Mary Jane Baker (1858-1922) and died 13 October 1923 Woollahra, New South Wales, Australia of unspecified causes. He married Emily Ellis (1888-c1917) 1 July 1912 in Grafton, New South Wales, Australia.
|Offspring of John Oswald Cox and Emily Ellis (1888-c1917)|
|Jack Cox (1915-?)|
|Reginald M Cox (1917-?)|
|Ronald C Cox (1917-?)|