John Twiss was born on 17 December 1817 in Birmingham, Warwickshire, England as the first child of John Twiss and Sarah Foxall. He died on 8 January 1866 in Aston Villa Lozells-lane Aston. When he was 20, he married Elizabeth Arnold,daughter of Mary Dell, on 28 October 1838 in St Peter's Church, Harborne, Staffordshire, England. He was buried on 12 Jan 1866 in All Saints, Hockley, Warwickshire, England.
John Twiss and Elizabeth Arnold had the following known children:
- Thomas Arnold Twiss was born on 14 September 1839 in Birmingham, Warwickshire, England. He married Elizabeth Beard on 27 October 1861 in St Thomas,, Birmingham, Warwickshire, England
- Emily Clara Twiss was born in April 1841 in Birmingham, Warwickshire, England.
- Alice Arnold Twiss was born in July 1842 in Birmingham, Warwickshire, England.
- Walter John Twiss was born in 1846 in Birmingham, Warwickshire, England. He died in 1904 in Aston, Warwickshire, England. He married Ada Sarah Pearman on 7 November 1864 in St Stephen, Birmingham, Warwickshire, England.
- Agnes Twiss was born in 1848 in Birmingham, Warwickshire, England.