Maybe a new tree owner will find this first. Do not link to trees! For the 2nd time in a matter of months I had contact with trees that had multiple copies of the same individuals in there trees. The first one had 16 copies of the same person, and that was repeated throughout the tree. These trees had linked to other Ancestry trees in the first tree clicking the checking the Ancestry Tree in the Source Info you'll find 21 trees linked to it. I ran a test by creating a tree of just 2 Grandparents and waited for the leaf. Then I did what new people excitedly might do and accepted each tree and added it all. Sure enough, I had 2 of the same Peters, and 2 Georges one included his full, etc. The attachments show what the linked trees added.