__Estates of Charlestown __ by Thomas B. Wyman suggests that Henry Baldwin, bp. 08 Feb 1622/23 in Ashton Clinton, Buckingham,England was the immigrant who was in Charlestown MA before 1640 and settled in Woburn MA that year.This Henry was the son of Richard and Philippa (--) Baldwin.
This Richard was supposedly the fifth son of Sylvester Baldwin and Jane Welles who married in Cholesbury, Buckingham, England on 28 Dec 1590 (the source for this is "Report of Investigations Concerning the Family of Baldwin, of Aston Clinton, co. Bucks" by Col. Joseph L. Chester, NEHGR 38:289 ).
What is the basis for this suggestion?
I believe I have found a better candidate, but I'd like to explore all angles if possible.