Thank you for your question
My name is Clare
I shall do my best to help you but I need some further information first
Doe she have the marriage certificate and does she know where her ex is?
Your partner will need to contact other members of his family - and indeed instruct an Enquiry Agent (about £100) to try and find him.
She can then issue a Divorce Petition based on the fact that they have lived apart for more than five years
If she has an address it would be sensible to ask the Court for the papers to be returned to her for service - and to get the Agent to serve him personally.
If she does not have an address then she can use this form to ask for permission to go ahead anyway
More details here
I hope that this is of assistance - please ask if you need further details