His convict records state his native place as Cambridgeshire, the 1828 census gives his age as 40.
Debra 
So he was 40 in 1828 and not 40 in the year he arrived (1812)
At post #4 I spelled out how age had been calculated. It wasn't clear whether it applied to year of arrival. I had looked at others listed on the same page, which did point to year of arrival being the fixed point. For example, I recall children age 3 appearing in the column "Age" - which had been created 1827 or later..
