I have already posted all the information from the commercial site that you asked to be looked up - that's where I got the information from.

I have some concerns as to whether the William Webb who was given permission to marry Caroline BAYLISS is the one you are seeking. Your William Webb had already given the information that he was married when he was transported; often this is mentioned in 'permission to marry' records. He is also listed as 'free' in the column giving the ship of arrival. He had a conditional pardon but was not necessarily 'free'. However these are only thoughts and it well may be the correct person.
Caroline BAYLISS was convicted of 'larceny from the person' at Warwickshire Quarter Sessions (Birmingham boro') 17 March, 1852. Sentenced to 14 years. (Source: All England & Wales, Criminal Registers, 1791-1892)
Her voyage date was 25 Nov 1852, on the Duchess of Northumberland but obviously not the same voyage as William WEBB. Her conditional pardon (Tasmania) is recorded on 3 June 1857. Sources: New South Wales and Tasmania, Australia, Convict Pardons and Tickets of Leave, 1834-1859, Australian Convict Transportation Registers – Other Fleets & Ships, 1791-1868.
Judith