Madison, Gibson, or Merlin are the three most common last names for Jon.
His mother is sometimes Linda Madison and sometimes Jane Gibson. Though I don't recall any branches right now where she's Linda Gibson or Jane Madison.
Hmm... wasn't there a branch where there are different alternate universe versions of Jon and each had a different last name? Or is that just an idea that I had for a branch that I've never got around to using since I tend to procrastinate?
