Thanks for your reply, Alison.
They are my great grandparents and they had 8 children - Augustus, Victor, Harold, Percival, Clifford, Stanley, Estelle and Irene. The unfortunate thing is trying to trace James Smith. Apparently his fathers name was Charles Smith. I was hoping anyone related may know of him, but with a name like 'SMITH', it seems very hard to find details about him. Their marriage certificate does not shed much light.