Most of what is known about Sarah is through her husband, which is common at this time period. We know from Suffield VR, The History of Deerfield and a land transaction documented in Hartford and Maine that Sarah and Eleazer Stockwell married 1700, had children (I only found a record for 1 but 5 are mentioned in family genealogies) Moved to the Housatonic valley in Western Mass, sold what was apparently Sarah's inheritance from a Richard Pease(Pearse) and a John Brown from Maine. We don't really know when Eleazer or Sarah died but it was certainly after 1732.
From this we can conclude that the Sarah's are almost certainly the same person. The mismatched marriages are due to a misreading of the Deerfield record which gives details of all the returning captives from 1675 which included Eleazer's Father, the account clearly states that Sarah and Eleazer married at Suffield not Deerfield. There are no records for either Sarah's death so the difference in death date is no difference since neither profile knows when Sarah died. Finally Sarah's last name is most likely Pearse: The Stockwell genealogy suggests that Sarah's Father was William Pease and her grand parents Richard Pease and Sarah Brown. But The land records refer to Sarah and to Richard as Pearse. The Suffield VR also use the surname Pearse. Suffield is a town that originally included many Pease's from Enfield and it is unlikely that they would misspell these surnames. And this Sarah does not appear in any of the pre 1700 Pease families in Enfield or Suffield.
If you Merge the Sarah's I can update the bio and provide better documentation of the sources.