From those three links, I'm not 100% sure what's going on, but you can always detached a spouse, parents, or children from a profile if you need to start over. Or if you are certain that there are two different people, create a new profile. Also, without judging those two particular tree pages at Ancestry, keep in mind that trees at Ancestry are rife with errors. I would probably start from what you know, and are certain is right, and carefully work backwards, adding sources as you go. Of course, if you're already certain that you're right, make the needed changes or create a new profile as needed.