This is why you have to be exceptionally wary of copying information from other people's trees, and from just accepting Ancestry's hints, which are very often not only incorrect but impossible both geographically and chronologically. If you have instances of people married at 9 and parents at 11 in the 19th century you clearly have some very wrong info somewhere and should detach those people/delete them and start over (and don't add things without verifying the information and sources and making sure you have the right John Smith and not some other John Smith, or whatever the person's name is).