You wrote, "She happened to marry a man (my gg) whose 1st name was Woodbury."
That is really something.
You wrote, "I'm seeing their parents as John and Agnes?" Am working currently to update both profiles, thus have also seen the links to "John and Agnes."
This association looks too much like the entry in FamilySearch FamilyTree reporting the immigrant, John Woodbury PID L5DQ-DNN (1583-1641), is married to Agnes Napper (she is PIDs L5RP-5B8 and GZVM-P6T), but is also the son of Agnes Napper (PID GZLG-X77)
Many, many scholarly articles have been published about the brothers, John and William Woodbury. None of those authors were successful in identifying their parentage. This includes Dearborn and Arthaud, who published the Summer 2021 article, "William^1 Woodbury of Salem and Beverly, Massachusetts.
Of your 9th ggf, Robert Charles Anderson wrote (1995), "John Woodbury was a conscientious man, who in his few years as part of Salem government, did more than others accomplished in much longer lives. He was present for every selectmen's meeting until death interrupted him in mid-stride in the winter of 1641."
Quite a legacy.
Thank you for supporting WikiTree. --Gene