Hi Jayne,
Can I ask how sure you are that William's father was Uriah PAVEY?
My William (born Cork 1816) appears on the 1841 census living with his mother Elen - she is 57 and from Ireland - in Temple, Bristol. His whole family (mother, himself and all of his siblings) are pipe makers. His siblings are Eliza (24), Elizabeth (19) and John (13). There is also a Jane (5) who may be a granddaughter. All bar William were born in Temple to Charles and Elenor PAVEY according to the Temple PRs.
I have associated my ancestor James PAVEY, a pipe maker,(born Cork 1805?) with this family as an older son, because he married Mary Ann MOON whose parents James and Elizabeth were resident next door on the census. The Christian name of Charles (or Charlotte in the feminine) is also very prevalent amongst the descendants of this family.
Based on this I think that William's father was Charles (born Bristol, Temple 1775) not Uriah.
I hope this is helpful.
Regards,
Grahame.