Joanne - you can either choose the correct husband yourself and add your source or ask the curator to do so. Either way, you might want a note on the profile so her husband is not incorrectly merged with someone else or given incorrect parents in the future.
It is a good thing that the profile is a Master Profile and would be even better if your information to it. It being a Master Profile gives it some protection from bad merges.
I am also related to the Annis family though marriage through the Lovejoy family.
There were 2 curators working on this tree; Myself and Angus. It was a complete disaster upon merges and that's pretty much the top of the lineage...Annis. She's listed with 3 different men and there's no documentation for the correct husband to pick from. So, if you know it, it would be most helpful to the descendants to let them know through this forum so we can "fix" the tree and make it as accurate as possible.