I've checked on FamilySearch and SFHG's transcriptions and they differ to what jonw65 found in the BTs regarding the Mary East burial in 1638.
FamilySearch transcribes the records as Mary East buried 24 Nov 1638 at Northiam d/o William & Allice East.
SFHG transcribes the record as Mary East d/o William and Allice w William - (BT)
Make what you will of that transcription! I wonder if the 'w' between Allice and William is meant to indicate that Allice was the wife of William? Certainly not his widow as they have the subsequent Mary.
It makes sense of the baptisms of the two later Marys if the above burial is that of the Mary baptised in 1632.
I wonder if some of the transcriptions of the Mary's baptism in 1625 has miss-transcribed Maria as Mary - FamilySearch has the name as Maria. Has some transcriber either miss-read the name or thought 'helpfully' that Maria was actually Mary whereas it seems to me to be a different person.
