Hi Michelle, If you indeed have birth and death details for John Flamank`s father John,then you have something that no one else has been able to discover,because as I mentioned before he was from an orphan branch.
John was baptised in St Enoder 10 July 1791 son of John Flamank(Flammack on the records) and Thomasin James (John and Thomasinmarried 8 Jan 1785 in St Enodor.) This is an orphan branch of the Flamank Family and no birth records for John have been found.
I know when I was researching,I discovered there were many John and James -to mention just two first names that were common in the Flamank families,and neither I or the researchers in England have yet been able to find 'our' Johns details(except his marriage)as above.
I would love to see your source for the birth and death date.