Clean up old photos

[jamesd]

Hi all,
I was wondering if someone new of a way to further clean up or enhance the attached image.
It is my Grandparents wedding photo which my Father asked if I could clean up.

I have mainly used the magic erase tool to remove spots. I have tried some live effects but lose some definition especially in the faces. It is the first time I have tried something like this, any advice would be much appreciated.

James