John married Jane Smith on 15 Aug 1850 in St. Mary's, Farnham Royal, Buckinghamshire, England. Jane (daughter of William Smith and Mary Carter) was born about 1830 in Wooburn, Buckinghamshire, England; died between 1 Oct 1924 and 31 Dec 1924 in Eton District, Buckinghamshire, England. [Group Sheet]

1. George Cox was born about 1851 in Farnham Royal, Buckinghamshire, England; died after 1861.
2. Emma Cox was born about 1853 in Farnham Royal, Buckinghamshire, England; died after 1861.
3. Annie Cox was born about 1854 in Farnham Royal, Buckinghamshire, England; died in Unknown.
4. Priscilla Cox was born between 1 Jul 1856 and 30 Sep 1856 in Farnham Royal, Buckinghamshire, England; died after 1861.
5. Ellen Cox was born between 1 Jan 1859 and 31 Mar 1859 in Farnham Royal, Buckinghamshire, England; died after 1861.
6. Harriet Cox was born between 1 Apr 1861 and 30 Jun 1861 in Farnham Royal, Buckinghamshire, England; died after 1871.
7. Mary Cox was born between 1 Jul 1863 and 30 Sep 1863 in Farnham Royal, Buckinghamshire, England; died after 1871.
8. Elizabeth Cox was born about 1866 in Farnham Royal, Buckinghamshire, England; died after 1871.
9. Sarah Jane Cox was born between 1 Jan 1868 and 31 Mar 1868 in Farnham Royal, Buckinghamshire, England; died after 1891.
10. Walter William Cox was born on 4 Mar 1870 in Farnham Royal, Buckinghamshire, England; died between 1 Oct 1943 and 31 Dec 1943 in Eton District, Buckinghamshire, England.
11. Clara Alice Cox was born between 1 Apr 1872 and 30 Jun 1872 in Farnham Royal, Buckinghamshire, England; died after 1881.