William Moorhouse Stoney b1765/1768/1771?

Vital details of my 4x great-grandfather William Moorhouse STONEY are still proving elusive. I found a record at OldBaileyOnline of a trial of one William Moorehouse STONEY in 1819 for fraud. He was sentenced to seven years' transportation.  I haven't found him in any of the online convict or transportation records, and haven't had a chance to search other criminal records at TNA which might reveal whether he really was transported.

My 3x great-grandmother Catherine Alice STONEY married in 1849, naming her father as William Moorhouse STONEY, Gentleman. She was underage at the time of the marriage and subsequent censuses suggest a birth year, in Newington, of c.1829. 

She appears, aged 12, with her father William STONEY, mother Mary and elder brother William on the 1841 census in Lambeth. William senior is aged 70 and described as an 'agent'. His wife is 20 years his junior.

There is a marriage record in the IGI for William Moorehouse STONEY and Mary Ann ROWNEY at St Giles Camberwell on 26 December 1825. 

On the 1851 census, the couple have moved to 2 Cottage Row, Newington. William M STONEY is shown as a Retired Grocer; his age is difficult to read but looks like 86 or 88, giving a birth year of around 1765 (rather than the 1771 I'd thought before from an earlier census transcript which gave his age as 80).

I have a death certificate for William Moorhouse STONEY for 17 January 1857 at 1 Cottage Row, Newington. He died of apoplexy, aged 89 (birth year=1768, his birth registered by his son William's wife Elizabeth STONEY.

So I am still no closer to knowing whether the Old Bailey refers to the same William as Catherine's elderly father, who appears to have changed his occupation fairly regularly, and whose age is inconsistently recorded.

I think I may have to order certificates for his son's marriage to see whether they shed any further light.