Is the documentation (such as a will or bible record) indicate the names of the children If so, check for the verification found in other profiles with Morley. If the names, and dates don't match (if it wants to merge) make it a match instead of initiating a merge so that way you can contact the profile manager to find out if you have a correct match. If nothing is there as documentation where the info came from, reject the match.
As long as you have a source to verify where you have gotten the information in the biography, you will be way ahead of others saying that they are sharing the same tree with you.