Wikitree – https://www.wikitree.com/wiki/Smith-13640 – does not show Mercy as having marred (2d) James Macor Maker, Sr. . The Geni person-profile for William's 1st wife, Rachel Maker , shows her death before 1740.
In Mercy's Will and Probate she's called Mercy Newcomb, which Wikitree summarized thusly:
"The will of Mercy Newcomb of Sandwich, widow and relict of Peter Newcomb was dated 19 August 1723 and proved on 17 January 1723/24 in Barnstable. She mentioned her daughter Marcy Dimmock, and her son William Newcomb (executor)."
CITINNG: "Probate records v. 4-5 1721-1741" database with images, FamilySearch (https://www.familysearch.org/ark:/61903/3:1:3Q9M-C9YY-L7WD : 21 May 2024), Film# 007705401, Barnstable, Massachusetts, image 94-95, Vol 4, Page 167-168.
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