I love it when a FindAGrave lists with certainty a birth date, especially when the memorial stone only lists a death date. Also, the creator or other contributors produce a narrative that is dense reading, but purports to identify parents, grandparents, etc., with no specific mention of sourcing.
I do not know about this period in Salem Massachusetts history well enough to evaluate, but some of what is presented on the memorial site seems salvageable and noteworthy*:
{{FindAGrave|64288626}}.
* The photos included are described as: "the cenotaph for the Fullers is in the Needham Cemetery, and includes Thomas and his wife Hannah, but they are almost certainly buried in the old Dedham Cemetery;" the second photo only would presume includes direct progeny; thus, those dates ought to be valuable and based upon researched records.
For now, I will proceed with caution in adding anything substantial regarding the above, but I wanted to invite project area folks to evaluate the ancestral aspects of the memorial (also, some of the descendants match, but of course, some don't).