Hi there...
It's a tough one, because his dates are pre-census. You know when and where he died, and when and where he married...both in the same place...have you checked with the churches in that area to see if there are any traces of Norris? The Francis Norris that was born in Hagbourne...how do you know he isn't the one? (Just curious.)
Also, did they have children? Check out where they ended up living, maybe that could give you a lead. It does seem that the men seemed a lot of the time to get married in the area where their bride came from, so it is hard to pin down. But, it had to be reasonbly close, because they had to meet somewhere!
Also if he married there, is there any record of his marriage?