Many thanks for your replies everyone. This has taken a fascinating turn, although not the one I was originally looking for. I was trying to establish if there was any connection between Augustus Edward Dawes and Sophie Dawes of St Helens on the Isle of Wight who was the Duke of Bourbon's mistress. Seeing as Augustus married a woman from St Helens, which is a small place, I thought that there might be a connection.
So his father appears to be James Alexander Morley, an old soldier who was born in India, and his mother Sarah Dawes. Why, I wonder, the second baptism?
In the 1859 Whites Directory he is called Augustus Ed. Morley, but then his death is registered under Dawes, and I think the daughters married as Daws. I did follow one of them, Isabella, who married a William Salter, went out to Canada for a while and then returned to the Isle of Wight.
I get the impression that, in spite of the gentleman status, they are probably not very rich.