Hi Michelle,
First of all, I think the village that you are interested in, is Great Marlow, Buckingshire. I guess you got your info from
the IGI. I just checked to see what they had and could not believe what I saw

. They are all church member submitted
records and as such may be complete nonsense. The many different names given to Great Marlow shows that these submitters did not do much research.(I particularly like "Great Marble"

) There was one marriage extracted from original records, so there is some hope that some Buffingtons did actually live in Great Marlow in the 1600s.
Would I be right in guessing that your Buffingtons were Quakers? I have done some Bucks(short form of the county name) research, but don't know much about Quaker records.
If no one on RootsChat can help you, I would suggest that
you contact the local family history societies; there are two
of them, either or both will be very helpful. They will do
look-ups for a very reasonable fee. If the Buffingtons lived in Buckinghamshire for any length of time, they will be able to find any existing records. Very little is available online. See:
http://www.bucksfhs.org.uk/ http://www.bucksgs.org.uk/ A good place to learn more about genealogical research in England and details about each county, place names, parishes, etc. is Genuki. Link to Bucks page:
http://met.open.ac.uk/genuki/big/eng/BKM/ Hope this is of some help.
Good Luck in your search,
Carmela