It is interesting that there is a record of the Banns, but no marriage!!!
I've just found someone on Ancestry who has them in their tree.
This person has Ernest William Ball b 1871 Kennington, London and his parents listed as:
William Ernest Ball b1846 Clerkenwell, London
Eliza Susan Williams b1842 Southwark, London
married 1867 Newington, London
Siblings for Ernest William are:
Elizabeth Maria 1868 Newington
Albert A. 1873 Newington
Edgar 1875 Newington
Kate Elizabeth is bSep 1873 in Islington, London
Alfred Higgins b 1845 in Husborn Crawley, Bedfordshire
Catharina Crossman b 1843 in Bishopsgate, Middlesex
William Ernest Ball's parents are listed as:
William Ball 1814 Middlesex
Maria 1820 Northampton
Eliza Susan William's parents are listed as:
Thomas Williams 1901
Maria Lewis 1816 Carmarthenshire, Wales
I could keep going, but if you want to be put in contact with the person who has this family on Ancestry, email me direct on: firstname.lastname@example.org
I'll ask them to contact you. No guarantee that they will.
I hope this helps,