It seems the title of my post is incorrect, Joseph would not have been of Bocking!
Looking at he's time line, it seems he was born c1725, place unknown. He is educated, thus from a wealthy family? and becomes a surgeon / apothecary in London. We can see him next as a widower marrying Susanna Ingram in 1784 at what seems to be the very prestigious venue of St. Lawrence, Guildhall, London, were he claims to be of St. Dunston in the West, London.
Shortly after their marriage they are producing offspring in Pinner, Middlesex (1786 - 1791) They then bury daughter Lydia in 1803 in Swaffham, Norwich and then Joseph is also buried there in 1806.
It does seem he is originally from London? but I have only managed to find one possible :
Joseph Rogers bap 20-06-1726, St. James, Piccadilly London parents Joseph and Mary.
The gap of being born in 1725' ish and marrying Sarah in 1784 is a long period, maybe there is some way to track down his education as surgeon? Does anyone have any experience with that kind of research?