Hi Shirley
From what I have found, Daniel married Ann Noble 2 May 1822 in March, Cambridgeshire, England. He then married Susannah Hardley on 7 February 1839 at St Andrews Cambridgeshire. Daniel's father is definitely listed as Isaac and he was a Farmer when Daniel married Ann (by Licence).
Daniel, Susannah (Susan), James, Daniel, Isaac, Elizabeth & Robert arrived in Australia 27 December 1852 on the Persian. Daniel passed away 10 September 1853 at Prahran, Victoria. I do not know where he is buried and need to purchase his death certificate. Susannah died and was buried 11 May 1868 in the St Kilda Cemetery. You will find other Ruff family members buried there as well.
Cheers
Judi