Trying to find some background for William France, I have looked further at his criminal records, both in England and Australia.
Before being sent to Tasmania as a convict, he had a few previous convictions in Liverpool. In fact the sentence for his last offence (due to previous crimes) was originally death, and this was commuted to 14 yrs transportation. Looking at Willams age cross all the documents, there is a conformity that his birth was abt 1819 in Liverpool (not 1814 as previously posted). This puts his age closer to his buddy Joseph Rycroft.
The only possible baptism I can find is this (but may not be correct)
Baptism: 21 Jun 1818 St Peter, Liverpool, Lancashire, England
William France - Son of William France (labourer) & Elizabeth
Abode: Cunliffe St
Williams fathers occupation is labourer & I feel this is more in line with his sons which was recorded as labourer / groom/ carter on convict records.