From the compilation of Lynn, Mass., records (https://www.familysearch.org/ark:/61903/3:1:3QS7-898Q-C99S-R?i=223), there are two children named Thomas Witt who are possibly the wife of Mary Ivory:
Family Search (https://www.familysearch.org/tree/person/about/G2QY-FZY) and Pane-Joyce (https://mathcs.clarku.edu/~djoyce/gen/report/rr09/rr09_465.html He is person 22002.) both have the child of Thomas & Bethiah as the husband of Mary Ivory.
Family Search (https://ancestors.familysearch.org/en/LCJQ-886/thomas-witt-1696-1739) has the son of John & Elizabeth as the husband of Martha Wood.
Does anyone else have any suggestions?
The first 7 kids belong to Mary Witt They have no definite birth dates or location. The last 3 belong to Martha Witt and were born in Marlborough.
So I know there is at least one bad merge. And more after it.
And the bad merge was in 2012. Grr.
So I think we need to disconnect Mary Witt and her 7 children and create a new profile for her husband. (Reason: there have been subsequent merges of Thomas & Martha.)