I agree with the warnings about being careful using info from other trees. My wife's family come from Liverpool, in England, yet there are a lot of AMT trees with one person who died in Liverpool, Onondaga, New York State. It appears that one person typed in Liverpool either in their AMT or FTM trees, and the Auto Fill selected the wrong Liverpool.
Following this, a number of people have copied the wrong information into their trees. I will use other AMT info as a guide, to help confirm my research, or I confirm myself the info is correct before I commit it to my tree.