I don't know how to eliminate an identifying name in a picture's URL from the "Properties" if someone should right-click on it.
I think SC has the answer to this; I sure don't.
1)You can always use a free hosting site (like Tinypic) and transfer your photo to that. That will reassign a new URL address without any identifying names.
2)You could also find a picture without the name of the person in its address.