I just wanted to thank you for the trouble you went to to help me with this problem but it seems I was mistaken.
With the help of someone on another forum I now believe that I had the wrong man completely. My mistake happened because I could only find one Austin Smith in Liverpool at the right time and simply assumed it must be him.
It seems that my man was actually born in Nova Scotia in 1823. The person who found this information has access to documents that I can't find at the moment but I will keep trying.
Thank you again for your kind help and I am sorry to have sent you on a wild goose chase.