This is just for reference in case others want to know this info as well.
Click the Photo and go to the Picture Page.
To the right of the photo is a list of profiles that the photo is attached or linked to.
Scroll down this page to find the box labelled - People and things in Image,
Remove the Wiki-ID of the person you do not want and replace with correct WIki-ID
And then click the big button at the bottom that says Save Changes to Image Details.