It seems I've found a discrepancy related to Abigail's parents: On my previous records, I'd found Abigail's father as "Thomas Stevenson" 1620-1662. However, here on this entry, the father is listed as "Edward Stevenson" 1610-1642 (-1662). So I'm just trying to sort out which is correct.
In poking around, I found a book called The New York Genealogical and Biographical Record v13-14,
https://babel.hathitrust.org/cgi/pt?id=coo.31924061993212;view=1up;....
P 119 references Abigail as the daughter of Thomas, though her entry is included just below a list of Edward's children. I could see how this could be easily misconstrued as Abigail being Edward's daughter, but perhaps there's some other primary source that disproves the one I found and proves her father was indeed Edward.
Does anyone have a source that confirms Edward as Abigail's father? Otherwise, I suggest re-linking Abigail as daughter of Thomas Stevenson.