John Low-1957 does indeed seem to be congruent with the NEHGR record, and John Low-273 does seem to have the parents that Chris Farraiolo concerned are missing.
I'll agree that the family -- two families -- are as confusing as all heck. Early Massachusetts FTW.
Chris, if this is resolved to your satisfaction, could you edit the original question to say so, and make clear that the two John Lows exist, and why they're confusing? Wikitree questions have high visibility on the web, and it's good to have the resolution clear up front, so future confusion is quickly resolved instead of repeated.